Home / 72,581,764.60-108,872,646.90-45,707,908.60

Finding the Fourth Proportional to 72,581,764.60, 108,872,646.90 and 45,707,908.60

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Solution

The fourth proportional to 72,581,764.60, 108,872,646.90 and 45,707,908.60 is: 68,561,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,581,764.60 : 108,872,646.90 = 45,707,908.60 : x
  2. Step 2: Convert to fraction form
    72,581,764.60/108,872,646.90 = 45,707,908.60/x
  3. Step 3: Cross multiply
    72,581,764.60x = 108,872,646.90 × 45,707,908.60
  4. Step 4: Simplify right side
    72,581,764.60x = 4,976,340,993,545,274
  5. Step 5: Solve for x
    x = 4,976,340,993,545,274/72,581,764.60
  6. Step 6: Final answer
    x = 68,561,862.90

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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.