Home / 132,071,752.80-198,107,629.20-86,155,250.40

Finding the Fourth Proportional to 132,071,752.80, 198,107,629.20 and 86,155,250.40

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Solution

The fourth proportional to 132,071,752.80, 198,107,629.20 and 86,155,250.40 is: 129,232,875.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,071,752.80 : 198,107,629.20 = 86,155,250.40 : x
  2. Step 2: Convert to fraction form
    132,071,752.80/198,107,629.20 = 86,155,250.40/x
  3. Step 3: Cross multiply
    132,071,752.80x = 198,107,629.20 × 86,155,250.40
  4. Step 4: Simplify right side
    132,071,752.80x = 17,068,012,399,876,352
  5. Step 5: Solve for x
    x = 17,068,012,399,876,352/132,071,752.80
  6. Step 6: Final answer
    x = 129,232,875.60

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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.