Home / 72,426,809.20-108,659,459.40-31,468,673.20

Finding the Fourth Proportional to 72,426,809.20, 108,659,459.40 and 31,468,673.20

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Solution

The fourth proportional to 72,426,809.20, 108,659,459.40 and 31,468,673.20 is: 47,211,371.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,426,809.20 : 108,659,459.40 = 31,468,673.20 : x
  2. Step 2: Convert to fraction form
    72,426,809.20/108,659,459.40 = 31,468,673.20/x
  3. Step 3: Cross multiply
    72,426,809.20x = 108,659,459.40 × 31,468,673.20
  4. Step 4: Simplify right side
    72,426,809.20x = 3,419,369,017,947,268
  5. Step 5: Solve for x
    x = 3,419,369,017,947,268/72,426,809.20
  6. Step 6: Final answer
    x = 47,211,371.81

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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.