Home / 12,658,752,238.40-18,988,128,357.60-8,299,215,598.40

Finding the Fourth Proportional to 12,658,752,238.40, 18,988,128,357.60 and 8,299,215,598.40

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Solution

The fourth proportional to 12,658,752,238.40, 18,988,128,357.60 and 8,299,215,598.40 is: 12,448,823,397.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,658,752,238.40 : 18,988,128,357.60 = 8,299,215,598.40 : x
  2. Step 2: Convert to fraction form
    12,658,752,238.40/18,988,128,357.60 = 8,299,215,598.40/x
  3. Step 3: Cross multiply
    12,658,752,238.40x = 18,988,128,357.60 × 8,299,215,598.40
  4. Step 4: Simplify right side
    12,658,752,238.40x = 157,586,571,049,815,277,568
  5. Step 5: Solve for x
    x = 157,586,571,049,815,277,568/12,658,752,238.40
  6. Step 6: Final answer
    x = 12,448,823,397.60

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Half scale
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Double scale
Find fourth proportional to 12,658,752,239.40, 18,988,128,359.10 and 8,299,215,599.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.