Home / 84,508,421.60-126,857,110.80-65,423,784.80

Finding the Fourth Proportional to 84,508,421.60, 126,857,110.80 and 65,423,784.80

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Solution

The fourth proportional to 84,508,421.60, 126,857,110.80 and 65,423,784.80 is: 98,208,819.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,508,421.60 : 126,857,110.80 = 65,423,784.80 : x
  2. Step 2: Convert to fraction form
    84,508,421.60/126,857,110.80 = 65,423,784.80/x
  3. Step 3: Cross multiply
    84,508,421.60x = 126,857,110.80 × 65,423,784.80
  4. Step 4: Simplify right side
    84,508,421.60x = 8,299,472,317,328,955
  5. Step 5: Solve for x
    x = 8,299,472,317,328,955/84,508,421.60
  6. Step 6: Final answer
    x = 98,208,819.43

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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.