Home / 84,508,423.10-126,857,113.05-65,423,786.30

Finding the Fourth Proportional to 84,508,423.10, 126,857,113.05 and 65,423,786.30

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Solution

The fourth proportional to 84,508,423.10, 126,857,113.05 and 65,423,786.30 is: 98,208,821.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,508,423.10 : 126,857,113.05 = 65,423,786.30 : x
  2. Step 2: Convert to fraction form
    84,508,423.10/126,857,113.05 = 65,423,786.30/x
  3. Step 3: Cross multiply
    84,508,423.10x = 126,857,113.05 × 65,423,786.30
  4. Step 4: Simplify right side
    84,508,423.10x = 8,299,472,654,818,141
  5. Step 5: Solve for x
    x = 8,299,472,654,818,141/84,508,423.10
  6. Step 6: Final answer
    x = 98,208,821.68

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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.