Home / 89,419,687.40-134,129,531.10-80,916,631.40

Finding the Fourth Proportional to 89,419,687.40, 134,129,531.10 and 80,916,631.40

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Solution

The fourth proportional to 89,419,687.40, 134,129,531.10 and 80,916,631.40 is: 121,374,947.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,419,687.40 : 134,129,531.10 = 80,916,631.40 : x
  2. Step 2: Convert to fraction form
    89,419,687.40/134,129,531.10 = 80,916,631.40/x
  3. Step 3: Cross multiply
    89,419,687.40x = 134,129,531.10 × 80,916,631.40
  4. Step 4: Simplify right side
    89,419,687.40x = 10,853,309,827,873,536
  5. Step 5: Solve for x
    x = 10,853,309,827,873,536/89,419,687.40
  6. Step 6: Final answer
    x = 121,374,947.10

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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.