Home / 129,331,589.56-178,450,951.02-74,316,817.24

Finding the Fourth Proportional to 129,331,589.56, 178,450,951.02 and 74,316,817.24

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Solution

The fourth proportional to 129,331,589.56, 178,450,951.02 and 74,316,817.24 is: 102,541,898.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,331,589.56 : 178,450,951.02 = 74,316,817.24 : x
  2. Step 2: Convert to fraction form
    129,331,589.56/178,450,951.02 = 74,316,817.24/x
  3. Step 3: Cross multiply
    129,331,589.56x = 178,450,951.02 × 74,316,817.24
  4. Step 4: Simplify right side
    129,331,589.56x = 13,261,906,713,257,532
  5. Step 5: Solve for x
    x = 13,261,906,713,257,532/129,331,589.56
  6. Step 6: Final answer
    x = 102,541,898.37

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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.