Home / 72,724,788.28-100,362,337.34-39,687,166.24

Finding the Fourth Proportional to 72,724,788.28, 100,362,337.34 and 39,687,166.24

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Solution

The fourth proportional to 72,724,788.28, 100,362,337.34 and 39,687,166.24 is: 54,769,451.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,724,788.28 : 100,362,337.34 = 39,687,166.24 : x
  2. Step 2: Convert to fraction form
    72,724,788.28/100,362,337.34 = 39,687,166.24/x
  3. Step 3: Cross multiply
    72,724,788.28x = 100,362,337.34 × 39,687,166.24
  4. Step 4: Simplify right side
    72,724,788.28x = 3,983,096,766,247,540
  5. Step 5: Solve for x
    x = 3,983,096,766,247,540/72,724,788.28
  6. Step 6: Final answer
    x = 54,769,451.52

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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.