Home / 129,479,472.18-194,295,807.90-47,655,819.72

Finding the Fourth Proportional to 129,479,472.18, 194,295,807.90 and 47,655,819.72

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Solution

The fourth proportional to 129,479,472.18, 194,295,807.90 and 47,655,819.72 is: 71,511,922.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,479,472.18 : 194,295,807.90 = 47,655,819.72 : x
  2. Step 2: Convert to fraction form
    129,479,472.18/194,295,807.90 = 47,655,819.72/x
  3. Step 3: Cross multiply
    129,479,472.18x = 194,295,807.90 × 47,655,819.72
  4. Step 4: Simplify right side
    129,479,472.18x = 9,259,325,993,634,152
  5. Step 5: Solve for x
    x = 9,259,325,993,634,152/129,479,472.18
  6. Step 6: Final answer
    x = 71,511,922.61

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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.