Home / 86,640,192,043.20-129,960,288,064.80-74,655,984,916.80

Finding the Fourth Proportional to 86,640,192,043.20, 129,960,288,064.80 and 74,655,984,916.80

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Solution

The fourth proportional to 86,640,192,043.20, 129,960,288,064.80 and 74,655,984,916.80 is: 111,983,977,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,640,192,043.20 : 129,960,288,064.80 = 74,655,984,916.80 : x
  2. Step 2: Convert to fraction form
    86,640,192,043.20/129,960,288,064.80 = 74,655,984,916.80/x
  3. Step 3: Cross multiply
    86,640,192,043.20x = 129,960,288,064.80 × 74,655,984,916.80
  4. Step 4: Simplify right side
    86,640,192,043.20x = 9,702,313,305,548,693,438,464
  5. Step 5: Solve for x
    x = 9,702,313,305,548,693,438,464/86,640,192,043.20
  6. Step 6: Final answer
    x = 111,983,977,375.20

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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.