Home / 132,989,853.40-199,148,856.90-87,304,298.20

Finding the Fourth Proportional to 132,989,853.40, 199,148,856.90 and 87,304,298.20

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Solution

The fourth proportional to 132,989,853.40, 199,148,856.90 and 87,304,298.20 is: 130,735,922.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,989,853.40 : 199,148,856.90 = 87,304,298.20 : x
  2. Step 2: Convert to fraction form
    132,989,853.40/199,148,856.90 = 87,304,298.20/x
  3. Step 3: Cross multiply
    132,989,853.40x = 199,148,856.90 × 87,304,298.20
  4. Step 4: Simplify right side
    132,989,853.40x = 17,386,551,188,986,728
  5. Step 5: Solve for x
    x = 17,386,551,188,986,728/132,989,853.40
  6. Step 6: Final answer
    x = 130,735,922.66

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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.