Home / 132,102,079.60-198,153,119.40-86,185,577.20

Finding the Fourth Proportional to 132,102,079.60, 198,153,119.40 and 86,185,577.20

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Solution

The fourth proportional to 132,102,079.60, 198,153,119.40 and 86,185,577.20 is: 129,278,365.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,102,079.60 : 198,153,119.40 = 86,185,577.20 : x
  2. Step 2: Convert to fraction form
    132,102,079.60/198,153,119.40 = 86,185,577.20/x
  3. Step 3: Cross multiply
    132,102,079.60x = 198,153,119.40 × 86,185,577.20
  4. Step 4: Simplify right side
    132,102,079.60x = 17,077,940,969,469,518
  5. Step 5: Solve for x
    x = 17,077,940,969,469,518/132,102,079.60
  6. Step 6: Final answer
    x = 129,278,365.80

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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.