Home / 12,658,752,655.40-18,988,128,983.10-8,299,216,015.40

Finding the Fourth Proportional to 12,658,752,655.40, 18,988,128,983.10 and 8,299,216,015.40

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Solution

The fourth proportional to 12,658,752,655.40, 18,988,128,983.10 and 8,299,216,015.40 is: 12,448,824,023.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,658,752,655.40 : 18,988,128,983.10 = 8,299,216,015.40 : x
  2. Step 2: Convert to fraction form
    12,658,752,655.40/18,988,128,983.10 = 8,299,216,015.40/x
  3. Step 3: Cross multiply
    12,658,752,655.40x = 18,988,128,983.10 × 8,299,216,015.40
  4. Step 4: Simplify right side
    12,658,752,655.40x = 157,586,584,159,024,414,720
  5. Step 5: Solve for x
    x = 157,586,584,159,024,414,720/12,658,752,655.40
  6. Step 6: Final answer
    x = 12,448,824,023.10

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Double scale
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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.