Home / 132,102,372.80-198,153,559.20-86,185,870.40

Finding the Fourth Proportional to 132,102,372.80, 198,153,559.20 and 86,185,870.40

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Solution

The fourth proportional to 132,102,372.80, 198,153,559.20 and 86,185,870.40 is: 129,278,805.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,102,372.80 : 198,153,559.20 = 86,185,870.40 : x
  2. Step 2: Convert to fraction form
    132,102,372.80/198,153,559.20 = 86,185,870.40/x
  3. Step 3: Cross multiply
    132,102,372.80x = 198,153,559.20 × 86,185,870.40
  4. Step 4: Simplify right side
    132,102,372.80x = 17,078,036,972,509,928
  5. Step 5: Solve for x
    x = 17,078,036,972,509,928/132,102,372.80
  6. Step 6: Final answer
    x = 129,278,805.60

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1.5x scale

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.