Home / 12,658,752,098.40-18,988,128,147.60-8,299,215,458.40

Finding the Fourth Proportional to 12,658,752,098.40, 18,988,128,147.60 and 8,299,215,458.40

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Solution

The fourth proportional to 12,658,752,098.40, 18,988,128,147.60 and 8,299,215,458.40 is: 12,448,823,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,658,752,098.40 : 18,988,128,147.60 = 8,299,215,458.40 : x
  2. Step 2: Convert to fraction form
    12,658,752,098.40/18,988,128,147.60 = 8,299,215,458.40/x
  3. Step 3: Cross multiply
    12,658,752,098.40x = 18,988,128,147.60 × 8,299,215,458.40
  4. Step 4: Simplify right side
    12,658,752,098.40x = 157,586,566,648,642,043,904
  5. Step 5: Solve for x
    x = 157,586,566,648,642,043,904/12,658,752,098.40
  6. Step 6: Final answer
    x = 12,448,823,187.60

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Double scale
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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.