Home / 87,366,865.40-131,050,298.10-85,666,254.20

Finding the Fourth Proportional to 87,366,865.40, 131,050,298.10 and 85,666,254.20

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Solution

The fourth proportional to 87,366,865.40, 131,050,298.10 and 85,666,254.20 is: 128,499,381.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,366,865.40 : 131,050,298.10 = 85,666,254.20 : x
  2. Step 2: Convert to fraction form
    87,366,865.40/131,050,298.10 = 85,666,254.20/x
  3. Step 3: Cross multiply
    87,366,865.40x = 131,050,298.10 × 85,666,254.20
  4. Step 4: Simplify right side
    87,366,865.40x = 11,226,588,150,020,376
  5. Step 5: Solve for x
    x = 11,226,588,150,020,376/87,366,865.40
  6. Step 6: Final answer
    x = 128,499,381.30

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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.