Home / 12,488,823.20-18,728,569.20-8,691,024.80

Finding the Fourth Proportional to 12,488,823.20, 18,728,569.20 and 8,691,024.80

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Solution

The fourth proportional to 12,488,823.20, 18,728,569.20 and 8,691,024.80 is: 13,033,290.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488,823.20 : 18,728,569.20 = 8,691,024.80 : x
  2. Step 2: Convert to fraction form
    12,488,823.20/18,728,569.20 = 8,691,024.80/x
  3. Step 3: Cross multiply
    12,488,823.20x = 18,728,569.20 × 8,691,024.80
  4. Step 4: Simplify right side
    12,488,823.20x = 162,770,459,385,716.16
  5. Step 5: Solve for x
    x = 162,770,459,385,716.16/12,488,823.20
  6. Step 6: Final answer
    x = 13,033,290.39

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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.