Home / 838,538,294.78-1,157,130,201.16-462,174,171.29

Finding the Fourth Proportional to 838,538,294.78, 1,157,130,201.16 and 462,174,171.29

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Solution

The fourth proportional to 838,538,294.78, 1,157,130,201.16 and 462,174,171.29 is: 637,771,339.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,538,294.78 : 1,157,130,201.16 = 462,174,171.29 : x
  2. Step 2: Convert to fraction form
    838,538,294.78/1,157,130,201.16 = 462,174,171.29/x
  3. Step 3: Cross multiply
    838,538,294.78x = 1,157,130,201.16 × 462,174,171.29
  4. Step 4: Simplify right side
    838,538,294.78x = 534,795,691,799,442,432
  5. Step 5: Solve for x
    x = 534,795,691,799,442,432/838,538,294.78
  6. Step 6: Final answer
    x = 637,771,339.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.