Home / 129,331,527.89-178,450,865.51-74,316,755.57

Finding the Fourth Proportional to 129,331,527.89, 178,450,865.51 and 74,316,755.57

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Solution

The fourth proportional to 129,331,527.89, 178,450,865.51 and 74,316,755.57 is: 102,541,813.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,331,527.89 : 178,450,865.51 = 74,316,755.57 : x
  2. Step 2: Convert to fraction form
    129,331,527.89/178,450,865.51 = 74,316,755.57/x
  3. Step 3: Cross multiply
    129,331,527.89x = 178,450,865.51 × 74,316,755.57
  4. Step 4: Simplify right side
    129,331,527.89x = 13,261,889,352,097,774
  5. Step 5: Solve for x
    x = 13,261,889,352,097,774/129,331,527.89
  6. Step 6: Final answer
    x = 102,541,813.04

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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.