Home / 72,728,595.76-100,367,593.80-39,690,969.04

Finding the Fourth Proportional to 72,728,595.76, 100,367,593.80 and 39,690,969.04

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Solution

The fourth proportional to 72,728,595.76, 100,367,593.80 and 39,690,969.04 is: 54,774,700.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,728,595.76 : 100,367,593.80 = 39,690,969.04 : x
  2. Step 2: Convert to fraction form
    72,728,595.76/100,367,593.80 = 39,690,969.04/x
  3. Step 3: Cross multiply
    72,728,595.76x = 100,367,593.80 × 39,690,969.04
  4. Step 4: Simplify right side
    72,728,595.76x = 3,983,687,058,135,095.50
  5. Step 5: Solve for x
    x = 3,983,687,058,135,095.50/72,728,595.76
  6. Step 6: Final answer
    x = 54,774,700.60

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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.