Home / 86,439,445.65-129,665,991.92-28,931,930.73

Finding the Fourth Proportional to 86,439,445.65, 129,665,991.92 and 28,931,930.73

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Solution

The fourth proportional to 86,439,445.65, 129,665,991.92 and 28,931,930.73 is: 43,400,179.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,439,445.65 : 129,665,991.92 = 28,931,930.73 : x
  2. Step 2: Convert to fraction form
    86,439,445.65/129,665,991.92 = 28,931,930.73/x
  3. Step 3: Cross multiply
    86,439,445.65x = 129,665,991.92 × 28,931,930.73
  4. Step 4: Simplify right side
    86,439,445.65x = 3,751,487,496,121,520.50
  5. Step 5: Solve for x
    x = 3,751,487,496,121,520.50/86,439,445.65
  6. Step 6: Final answer
    x = 43,400,179.95

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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.