Home / 138,719,476.20-208,016,228.70-52,429,204.20

Finding the Fourth Proportional to 138,719,476.20, 208,016,228.70 and 52,429,204.20

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Solution

The fourth proportional to 138,719,476.20, 208,016,228.70 and 52,429,204.20 is: 78,620,000.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,719,476.20 : 208,016,228.70 = 52,429,204.20 : x
  2. Step 2: Convert to fraction form
    138,719,476.20/208,016,228.70 = 52,429,204.20/x
  3. Step 3: Cross multiply
    138,719,476.20x = 208,016,228.70 × 52,429,204.20
  4. Step 4: Simplify right side
    138,719,476.20x = 10,906,125,331,426,200
  5. Step 5: Solve for x
    x = 10,906,125,331,426,200/138,719,476.20
  6. Step 6: Final answer
    x = 78,620,000.81

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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.