Home / 72,581,491.20-108,872,236.80-49,589,414.40

Finding the Fourth Proportional to 72,581,491.20, 108,872,236.80 and 49,589,414.40

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Solution

The fourth proportional to 72,581,491.20, 108,872,236.80 and 49,589,414.40 is: 74,384,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,581,491.20 : 108,872,236.80 = 49,589,414.40 : x
  2. Step 2: Convert to fraction form
    72,581,491.20/108,872,236.80 = 49,589,414.40/x
  3. Step 3: Cross multiply
    72,581,491.20x = 108,872,236.80 × 49,589,414.40
  4. Step 4: Simplify right side
    72,581,491.20x = 5,398,910,467,330,130
  5. Step 5: Solve for x
    x = 5,398,910,467,330,130/72,581,491.20
  6. Step 6: Final answer
    x = 74,384,121.60

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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.