Home / 14,381,324.80-21,571,987.20-12,449,766.40

Finding the Fourth Proportional to 14,381,324.80, 21,571,987.20 and 12,449,766.40

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Solution

The fourth proportional to 14,381,324.80, 21,571,987.20 and 12,449,766.40 is: 18,674,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,381,324.80 : 21,571,987.20 = 12,449,766.40 : x
  2. Step 2: Convert to fraction form
    14,381,324.80/21,571,987.20 = 12,449,766.40/x
  3. Step 3: Cross multiply
    14,381,324.80x = 21,571,987.20 × 12,449,766.40
  4. Step 4: Simplify right side
    14,381,324.80x = 268,566,201,423,790.09
  5. Step 5: Solve for x
    x = 268,566,201,423,790.09/14,381,324.80
  6. Step 6: Final answer
    x = 18,674,649.60

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Double scale
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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.