Home / 129,490,532.61-178,691,617.53-70,755,214.02

Finding the Fourth Proportional to 129,490,532.61, 178,691,617.53 and 70,755,214.02

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Solution

The fourth proportional to 129,490,532.61, 178,691,617.53 and 70,755,214.02 is: 97,639,289.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,490,532.61 : 178,691,617.53 = 70,755,214.02 : x
  2. Step 2: Convert to fraction form
    129,490,532.61/178,691,617.53 = 70,755,214.02/x
  3. Step 3: Cross multiply
    129,490,532.61x = 178,691,617.53 × 70,755,214.02
  4. Step 4: Simplify right side
    129,490,532.61x = 12,643,363,641,915,134
  5. Step 5: Solve for x
    x = 12,643,363,641,915,134/129,490,532.61
  6. Step 6: Final answer
    x = 97,639,289.82

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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.