Home / 8,791,990.20-13,191,921.90-3,997,211.40

Finding the Fourth Proportional to 8,791,990.20, 13,191,921.90 and 3,997,211.40

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Solution

The fourth proportional to 8,791,990.20, 13,191,921.90 and 3,997,211.40 is: 5,997,606.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791,990.20 : 13,191,921.90 = 3,997,211.40 : x
  2. Step 2: Convert to fraction form
    8,791,990.20/13,191,921.90 = 3,997,211.40/x
  3. Step 3: Cross multiply
    8,791,990.20x = 13,191,921.90 × 3,997,211.40
  4. Step 4: Simplify right side
    8,791,990.20x = 52,730,900,606,589.66
  5. Step 5: Solve for x
    x = 52,730,900,606,589.66/8,791,990.20
  6. Step 6: Final answer
    x = 5,997,606.85

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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.