Home / 13,479,031.80-20,218,547.70-8,377,198.20

Finding the Fourth Proportional to 13,479,031.80, 20,218,547.70 and 8,377,198.20

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Solution

The fourth proportional to 13,479,031.80, 20,218,547.70 and 8,377,198.20 is: 12,565,797.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,031.80 : 20,218,547.70 = 8,377,198.20 : x
  2. Step 2: Convert to fraction form
    13,479,031.80/20,218,547.70 = 8,377,198.20/x
  3. Step 3: Cross multiply
    13,479,031.80x = 20,218,547.70 × 8,377,198.20
  4. Step 4: Simplify right side
    13,479,031.80x = 169,374,781,399,054.12
  5. Step 5: Solve for x
    x = 169,374,781,399,054.12/13,479,031.80
  6. Step 6: Final answer
    x = 12,565,797.30

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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.