Home / 38,992,815.13-53,811,766.50-21,589,160.59

Finding the Fourth Proportional to 38,992,815.13, 53,811,766.50 and 21,589,160.59

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Solution

The fourth proportional to 38,992,815.13, 53,811,766.50 and 21,589,160.59 is: 29,793,972.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,992,815.13 : 53,811,766.50 = 21,589,160.59 : x
  2. Step 2: Convert to fraction form
    38,992,815.13/53,811,766.50 = 21,589,160.59/x
  3. Step 3: Cross multiply
    38,992,815.13x = 53,811,766.50 × 21,589,160.59
  4. Step 4: Simplify right side
    38,992,815.13x = 1,161,750,868,600,082.25
  5. Step 5: Solve for x
    x = 1,161,750,868,600,082.25/38,992,815.13
  6. Step 6: Final answer
    x = 29,793,972.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.