Home / 84,515,732.60-126,868,077.30-65,431,095.80

Finding the Fourth Proportional to 84,515,732.60, 126,868,077.30 and 65,431,095.80

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Solution

The fourth proportional to 84,515,732.60, 126,868,077.30 and 65,431,095.80 is: 98,219,787.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,515,732.60 : 126,868,077.30 = 65,431,095.80 : x
  2. Step 2: Convert to fraction form
    84,515,732.60/126,868,077.30 = 65,431,095.80/x
  3. Step 3: Cross multiply
    84,515,732.60x = 126,868,077.30 × 65,431,095.80
  4. Step 4: Simplify right side
    84,515,732.60x = 8,301,117,319,778,105
  5. Step 5: Solve for x
    x = 8,301,117,319,778,105/84,515,732.60
  6. Step 6: Final answer
    x = 98,219,787.78

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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.