Home / 78,515,029.20-117,791,206.20-33,053,422.80

Finding the Fourth Proportional to 78,515,029.20, 117,791,206.20 and 33,053,422.80

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Solution

The fourth proportional to 78,515,029.20, 117,791,206.20 and 33,053,422.80 is: 49,587,990.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,515,029.20 : 117,791,206.20 = 33,053,422.80 : x
  2. Step 2: Convert to fraction form
    78,515,029.20/117,791,206.20 = 33,053,422.80/x
  3. Step 3: Cross multiply
    78,515,029.20x = 117,791,206.20 × 33,053,422.80
  4. Step 4: Simplify right side
    78,515,029.20x = 3,893,402,540,650,581.50
  5. Step 5: Solve for x
    x = 3,893,402,540,650,581.50/78,515,029.20
  6. Step 6: Final answer
    x = 49,587,990.74

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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.