Home / 89,158,981.28-133,770,328.48-54,215,189.84

Finding the Fourth Proportional to 89,158,981.28, 133,770,328.48 and 54,215,189.84

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Solution

The fourth proportional to 89,158,981.28, 133,770,328.48 and 54,215,189.84 is: 81,342,155.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,158,981.28 : 133,770,328.48 = 54,215,189.84 : x
  2. Step 2: Convert to fraction form
    89,158,981.28/133,770,328.48 = 54,215,189.84/x
  3. Step 3: Cross multiply
    89,158,981.28x = 133,770,328.48 × 54,215,189.84
  4. Step 4: Simplify right side
    89,158,981.28x = 7,252,383,753,502,359
  5. Step 5: Solve for x
    x = 7,252,383,753,502,359/89,158,981.28
  6. Step 6: Final answer
    x = 81,342,155.88

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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.