Home / 72,417,902.70-108,646,099.65-31,459,766.70

Finding the Fourth Proportional to 72,417,902.70, 108,646,099.65 and 31,459,766.70

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Solution

The fourth proportional to 72,417,902.70, 108,646,099.65 and 31,459,766.70 is: 47,198,010.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,417,902.70 : 108,646,099.65 = 31,459,766.70 : x
  2. Step 2: Convert to fraction form
    72,417,902.70/108,646,099.65 = 31,459,766.70/x
  3. Step 3: Cross multiply
    72,417,902.70x = 108,646,099.65 × 31,459,766.70
  4. Step 4: Simplify right side
    72,417,902.70x = 3,417,980,947,853,952
  5. Step 5: Solve for x
    x = 3,417,980,947,853,952/72,417,902.70
  6. Step 6: Final answer
    x = 47,198,010.72

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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.