Home / 13,479,763.80-20,219,645.70-8,377,930.20

Finding the Fourth Proportional to 13,479,763.80, 20,219,645.70 and 8,377,930.20

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Solution

The fourth proportional to 13,479,763.80, 20,219,645.70 and 8,377,930.20 is: 12,566,895.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,763.80 : 20,219,645.70 = 8,377,930.20 : x
  2. Step 2: Convert to fraction form
    13,479,763.80/20,219,645.70 = 8,377,930.20/x
  3. Step 3: Cross multiply
    13,479,763.80x = 20,219,645.70 × 8,377,930.20
  4. Step 4: Simplify right side
    13,479,763.80x = 169,398,780,343,330.12
  5. Step 5: Solve for x
    x = 169,398,780,343,330.12/13,479,763.80
  6. Step 6: Final answer
    x = 12,566,895.30

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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.