Home / 15,159,809.20-22,739,713.80-12,768,324.70

Finding the Fourth Proportional to 15,159,809.20, 22,739,713.80 and 12,768,324.70

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Solution

The fourth proportional to 15,159,809.20, 22,739,713.80 and 12,768,324.70 is: 19,152,487.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,159,809.20 : 22,739,713.80 = 12,768,324.70 : x
  2. Step 2: Convert to fraction form
    15,159,809.20/22,739,713.80 = 12,768,324.70/x
  3. Step 3: Cross multiply
    15,159,809.20x = 22,739,713.80 × 12,768,324.70
  4. Step 4: Simplify right side
    15,159,809.20x = 290,348,049,383,470.88
  5. Step 5: Solve for x
    x = 290,348,049,383,470.88/15,159,809.20
  6. Step 6: Final answer
    x = 19,152,487.05

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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.