Home / 20,391,418.20-30,587,127.30-14,332,990.80

Finding the Fourth Proportional to 20,391,418.20, 30,587,127.30 and 14,332,990.80

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Solution

The fourth proportional to 20,391,418.20, 30,587,127.30 and 14,332,990.80 is: 21,499,486.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391,418.20 : 30,587,127.30 = 14,332,990.80 : x
  2. Step 2: Convert to fraction form
    20,391,418.20/30,587,127.30 = 14,332,990.80/x
  3. Step 3: Cross multiply
    20,391,418.20x = 30,587,127.30 × 14,332,990.80
  4. Step 4: Simplify right side
    20,391,418.20x = 438,405,014,189,328.88
  5. Step 5: Solve for x
    x = 438,405,014,189,328.88/20,391,418.20
  6. Step 6: Final answer
    x = 21,499,486.20

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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.