Home / 72,426,812.70-108,659,464.65-31,468,676.70

Finding the Fourth Proportional to 72,426,812.70, 108,659,464.65 and 31,468,676.70

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Solution

The fourth proportional to 72,426,812.70, 108,659,464.65 and 31,468,676.70 is: 47,211,377.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,426,812.70 : 108,659,464.65 = 31,468,676.70 : x
  2. Step 2: Convert to fraction form
    72,426,812.70/108,659,464.65 = 31,468,676.70/x
  3. Step 3: Cross multiply
    72,426,812.70x = 108,659,464.65 × 31,468,676.70
  4. Step 4: Simplify right side
    72,426,812.70x = 3,419,369,563,465,929
  5. Step 5: Solve for x
    x = 3,419,369,563,465,929/72,426,812.70
  6. Step 6: Final answer
    x = 47,211,377.06

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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.