Home / 21,002,616.60-31,510,923.30-18,744,984.60

Finding the Fourth Proportional to 21,002,616.60, 31,510,923.30 and 18,744,984.60

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Solution

The fourth proportional to 21,002,616.60, 31,510,923.30 and 18,744,984.60 is: 28,123,723.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,002,616.60 : 31,510,923.30 = 18,744,984.60 : x
  2. Step 2: Convert to fraction form
    21,002,616.60/31,510,923.30 = 18,744,984.60/x
  3. Step 3: Cross multiply
    21,002,616.60x = 31,510,923.30 × 18,744,984.60
  4. Step 4: Simplify right side
    21,002,616.60x = 590,671,771,990,281.25
  5. Step 5: Solve for x
    x = 590,671,771,990,281.25/21,002,616.60
  6. Step 6: Final answer
    x = 28,123,723.02

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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.