Home / 126,026,981.60-189,040,472.40-30,288,869.60

Finding the Fourth Proportional to 126,026,981.60, 189,040,472.40 and 30,288,869.60

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Solution

The fourth proportional to 126,026,981.60, 189,040,472.40 and 30,288,869.60 is: 45,433,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,026,981.60 : 189,040,472.40 = 30,288,869.60 : x
  2. Step 2: Convert to fraction form
    126,026,981.60/189,040,472.40 = 30,288,869.60/x
  3. Step 3: Cross multiply
    126,026,981.60x = 189,040,472.40 × 30,288,869.60
  4. Step 4: Simplify right side
    126,026,981.60x = 5,725,822,217,646,000
  5. Step 5: Solve for x
    x = 5,725,822,217,646,000/126,026,981.60
  6. Step 6: Final answer
    x = 45,433,304.40

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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.