Home / 132,119,992.80-198,179,989.20-86,203,490.40

Finding the Fourth Proportional to 132,119,992.80, 198,179,989.20 and 86,203,490.40

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Solution

The fourth proportional to 132,119,992.80, 198,179,989.20 and 86,203,490.40 is: 129,305,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,119,992.80 : 198,179,989.20 = 86,203,490.40 : x
  2. Step 2: Convert to fraction form
    132,119,992.80/198,179,989.20 = 86,203,490.40/x
  3. Step 3: Cross multiply
    132,119,992.80x = 198,179,989.20 × 86,203,490.40
  4. Step 4: Simplify right side
    132,119,992.80x = 17,083,806,796,474,304
  5. Step 5: Solve for x
    x = 17,083,806,796,474,304/132,119,992.80
  6. Step 6: Final answer
    x = 129,305,235.60

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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.