Home / 87,366,863.40-131,050,295.10-85,666,252.20

Finding the Fourth Proportional to 87,366,863.40, 131,050,295.10 and 85,666,252.20

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Solution

The fourth proportional to 87,366,863.40, 131,050,295.10 and 85,666,252.20 is: 128,499,378.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,366,863.40 : 131,050,295.10 = 85,666,252.20 : x
  2. Step 2: Convert to fraction form
    87,366,863.40/131,050,295.10 = 85,666,252.20/x
  3. Step 3: Cross multiply
    87,366,863.40x = 131,050,295.10 × 85,666,252.20
  4. Step 4: Simplify right side
    87,366,863.40x = 11,226,587,630,921,024
  5. Step 5: Solve for x
    x = 11,226,587,630,921,024/87,366,863.40
  6. Step 6: Final answer
    x = 128,499,378.30

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1.5x scale

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.