Home / 72,035,550.12-108,056,315.16-20,917,569

Finding the Fourth Proportional to 72,035,550.12, 108,056,315.16 and 20,917,569

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Solution

The fourth proportional to 72,035,550.12, 108,056,315.16 and 20,917,569 is: 31,377,221.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,035,550.12 : 108,056,315.16 = 20,917,569 : x
  2. Step 2: Convert to fraction form
    72,035,550.12/108,056,315.16 = 20,917,569/x
  3. Step 3: Cross multiply
    72,035,550.12x = 108,056,315.16 × 20,917,569
  4. Step 4: Simplify right side
    72,035,550.12x = 2,260,275,428,245,046
  5. Step 5: Solve for x
    x = 2,260,275,428,245,046/72,035,550.12
  6. Step 6: Final answer
    x = 31,377,221.73

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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.