Home / 84,508,415.10-126,857,101.05-65,423,778.30

Finding the Fourth Proportional to 84,508,415.10, 126,857,101.05 and 65,423,778.30

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Solution

The fourth proportional to 84,508,415.10, 126,857,101.05 and 65,423,778.30 is: 98,208,809.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,508,415.10 : 126,857,101.05 = 65,423,778.30 : x
  2. Step 2: Convert to fraction form
    84,508,415.10/126,857,101.05 = 65,423,778.30/x
  3. Step 3: Cross multiply
    84,508,415.10x = 126,857,101.05 × 65,423,778.30
  4. Step 4: Simplify right side
    84,508,415.10x = 8,299,470,854,875,897
  5. Step 5: Solve for x
    x = 8,299,470,854,875,897/84,508,415.10
  6. Step 6: Final answer
    x = 98,208,809.68

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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.