Home / 84,051,691.20-125,979,559.20-38,618,078.40

Finding the Fourth Proportional to 84,051,691.20, 125,979,559.20 and 38,618,078.40

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Solution

The fourth proportional to 84,051,691.20, 125,979,559.20 and 38,618,078.40 is: 57,882,101.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,051,691.20 : 125,979,559.20 = 38,618,078.40 : x
  2. Step 2: Convert to fraction form
    84,051,691.20/125,979,559.20 = 38,618,078.40/x
  3. Step 3: Cross multiply
    84,051,691.20x = 125,979,559.20 × 38,618,078.40
  4. Step 4: Simplify right side
    84,051,691.20x = 4,865,088,493,983,041
  5. Step 5: Solve for x
    x = 4,865,088,493,983,041/84,051,691.20
  6. Step 6: Final answer
    x = 57,882,101.18

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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.