Home / 21,399,280.80-32,098,921.20-9,455,344.80

Finding the Fourth Proportional to 21,399,280.80, 32,098,921.20 and 9,455,344.80

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Solution

The fourth proportional to 21,399,280.80, 32,098,921.20 and 9,455,344.80 is: 14,183,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,399,280.80 : 32,098,921.20 = 9,455,344.80 : x
  2. Step 2: Convert to fraction form
    21,399,280.80/32,098,921.20 = 9,455,344.80/x
  3. Step 3: Cross multiply
    21,399,280.80x = 32,098,921.20 × 9,455,344.80
  4. Step 4: Simplify right side
    21,399,280.80x = 303,506,367,654,029.75
  5. Step 5: Solve for x
    x = 303,506,367,654,029.75/21,399,280.80
  6. Step 6: Final answer
    x = 14,183,017.20

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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.