Home / 14,003,140.80-21,004,711.20-5,480,644.80

Finding the Fourth Proportional to 14,003,140.80, 21,004,711.20 and 5,480,644.80

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Solution

The fourth proportional to 14,003,140.80, 21,004,711.20 and 5,480,644.80 is: 8,220,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,003,140.80 : 21,004,711.20 = 5,480,644.80 : x
  2. Step 2: Convert to fraction form
    14,003,140.80/21,004,711.20 = 5,480,644.80/x
  3. Step 3: Cross multiply
    14,003,140.80x = 21,004,711.20 × 5,480,644.80
  4. Step 4: Simplify right side
    14,003,140.80x = 115,119,361,213,781.75
  5. Step 5: Solve for x
    x = 115,119,361,213,781.75/14,003,140.80
  6. Step 6: Final answer
    x = 8,220,967.20

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Similar ratio
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1.5x scale

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.