Home / 121,737,844.02-167,980,288.14-74,028,759.78

Finding the Fourth Proportional to 121,737,844.02, 167,980,288.14 and 74,028,759.78

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Solution

The fourth proportional to 121,737,844.02, 167,980,288.14 and 74,028,759.78 is: 102,148,781.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,737,844.02 : 167,980,288.14 = 74,028,759.78 : x
  2. Step 2: Convert to fraction form
    121,737,844.02/167,980,288.14 = 74,028,759.78/x
  3. Step 3: Cross multiply
    121,737,844.02x = 167,980,288.14 × 74,028,759.78
  4. Step 4: Simplify right side
    121,737,844.02x = 12,435,372,398,491,242
  5. Step 5: Solve for x
    x = 12,435,372,398,491,242/121,737,844.02
  6. Step 6: Final answer
    x = 102,148,781.25

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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.