Home / 132,192,030.20-198,288,045.30-80,459,857.40

Finding the Fourth Proportional to 132,192,030.20, 198,288,045.30 and 80,459,857.40

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Solution

The fourth proportional to 132,192,030.20, 198,288,045.30 and 80,459,857.40 is: 120,689,786.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,192,030.20 : 198,288,045.30 = 80,459,857.40 : x
  2. Step 2: Convert to fraction form
    132,192,030.20/198,288,045.30 = 80,459,857.40/x
  3. Step 3: Cross multiply
    132,192,030.20x = 198,288,045.30 × 80,459,857.40
  4. Step 4: Simplify right side
    132,192,030.20x = 15,954,227,848,962,742
  5. Step 5: Solve for x
    x = 15,954,227,848,962,742/132,192,030.20
  6. Step 6: Final answer
    x = 120,689,786.10

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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.