Home / 13,820,565.20-20,747,906.40-8,702,985.20

Finding the Fourth Proportional to 13,820,565.20, 20,747,906.40 and 8,702,985.20

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Solution

The fourth proportional to 13,820,565.20, 20,747,906.40 and 8,702,985.20 is: 13,065,219.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,820,565.20 : 20,747,906.40 = 8,702,985.20 : x
  2. Step 2: Convert to fraction form
    13,820,565.20/20,747,906.40 = 8,702,985.20/x
  3. Step 3: Cross multiply
    13,820,565.20x = 20,747,906.40 × 8,702,985.20
  4. Step 4: Simplify right side
    13,820,565.20x = 180,568,722,330,185.25
  5. Step 5: Solve for x
    x = 180,568,722,330,185.25/13,820,565.20
  6. Step 6: Final answer
    x = 13,065,219.82

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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.