Home / 83,104,028.80-124,656,043.20-81,909,635.20

Finding the Fourth Proportional to 83,104,028.80, 124,656,043.20 and 81,909,635.20

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Solution

The fourth proportional to 83,104,028.80, 124,656,043.20 and 81,909,635.20 is: 122,864,452.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,104,028.80 : 124,656,043.20 = 81,909,635.20 : x
  2. Step 2: Convert to fraction form
    83,104,028.80/124,656,043.20 = 81,909,635.20/x
  3. Step 3: Cross multiply
    83,104,028.80x = 124,656,043.20 × 81,909,635.20
  4. Step 4: Simplify right side
    83,104,028.80x = 10,210,531,023,987,442
  5. Step 5: Solve for x
    x = 10,210,531,023,987,442/83,104,028.80
  6. Step 6: Final answer
    x = 122,864,452.80

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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.