Home / 129,225,156.62-178,331,270.56-70,489,101.74

Finding the Fourth Proportional to 129,225,156.62, 178,331,270.56 and 70,489,101.74

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Solution

The fourth proportional to 129,225,156.62, 178,331,270.56 and 70,489,101.74 is: 97,275,262.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,225,156.62 : 178,331,270.56 = 70,489,101.74 : x
  2. Step 2: Convert to fraction form
    129,225,156.62/178,331,270.56 = 70,489,101.74/x
  3. Step 3: Cross multiply
    129,225,156.62x = 178,331,270.56 × 70,489,101.74
  4. Step 4: Simplify right side
    129,225,156.62x = 12,570,411,072,859,428
  5. Step 5: Solve for x
    x = 12,570,411,072,859,428/129,225,156.62
  6. Step 6: Final answer
    x = 97,275,262.82

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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.