Home / 87,363,631.20-131,045,446.80-86,229,890.40

Finding the Fourth Proportional to 87,363,631.20, 131,045,446.80 and 86,229,890.40

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Solution

The fourth proportional to 87,363,631.20, 131,045,446.80 and 86,229,890.40 is: 129,344,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,363,631.20 : 131,045,446.80 = 86,229,890.40 : x
  2. Step 2: Convert to fraction form
    87,363,631.20/131,045,446.80 = 86,229,890.40/x
  3. Step 3: Cross multiply
    87,363,631.20x = 131,045,446.80 × 86,229,890.40
  4. Step 4: Simplify right side
    87,363,631.20x = 11,300,034,514,983,032
  5. Step 5: Solve for x
    x = 11,300,034,514,983,032/87,363,631.20
  6. Step 6: Final answer
    x = 129,344,835.60

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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.