Home / 72,684,105.44-100,305,248.10-39,644,346.17

Finding the Fourth Proportional to 72,684,105.44, 100,305,248.10 and 39,644,346.17

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Solution

The fourth proportional to 72,684,105.44, 100,305,248.10 and 39,644,346.17 is: 54,709,842.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,684,105.44 : 100,305,248.10 = 39,644,346.17 : x
  2. Step 2: Convert to fraction form
    72,684,105.44/100,305,248.10 = 39,644,346.17/x
  3. Step 3: Cross multiply
    72,684,105.44x = 100,305,248.10 × 39,644,346.17
  4. Step 4: Simplify right side
    72,684,105.44x = 3,976,535,978,446,231.50
  5. Step 5: Solve for x
    x = 3,976,535,978,446,231.50/72,684,105.44
  6. Step 6: Final answer
    x = 54,709,842.75

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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.