Home / 87,336,020.20-131,004,030.30-78,832,964.20

Finding the Fourth Proportional to 87,336,020.20, 131,004,030.30 and 78,832,964.20

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Solution

The fourth proportional to 87,336,020.20, 131,004,030.30 and 78,832,964.20 is: 118,249,446.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,336,020.20 : 131,004,030.30 = 78,832,964.20 : x
  2. Step 2: Convert to fraction form
    87,336,020.20/131,004,030.30 = 78,832,964.20/x
  3. Step 3: Cross multiply
    87,336,020.20x = 131,004,030.30 × 78,832,964.20
  4. Step 4: Simplify right side
    87,336,020.20x = 10,327,436,030,695,616
  5. Step 5: Solve for x
    x = 10,327,436,030,695,616/87,336,020.20
  6. Step 6: Final answer
    x = 118,249,446.30

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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.