Home / 89,518,715.28-134,277,630.36-77,351,152.86

Finding the Fourth Proportional to 89,518,715.28, 134,277,630.36 and 77,351,152.86

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Solution

The fourth proportional to 89,518,715.28, 134,277,630.36 and 77,351,152.86 is: 116,026,346.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,518,715.28 : 134,277,630.36 = 77,351,152.86 : x
  2. Step 2: Convert to fraction form
    89,518,715.28/134,277,630.36 = 77,351,152.86/x
  3. Step 3: Cross multiply
    89,518,715.28x = 134,277,630.36 × 77,351,152.86
  4. Step 4: Simplify right side
    89,518,715.28x = 10,386,529,511,654,938
  5. Step 5: Solve for x
    x = 10,386,529,511,654,938/89,518,715.28
  6. Step 6: Final answer
    x = 116,026,346.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.