Home / 12,491,292.80-18,736,939.20-9,656,940.80

Finding the Fourth Proportional to 12,491,292.80, 18,736,939.20 and 9,656,940.80

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Solution

The fourth proportional to 12,491,292.80, 18,736,939.20 and 9,656,940.80 is: 14,485,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491,292.80 : 18,736,939.20 = 9,656,940.80 : x
  2. Step 2: Convert to fraction form
    12,491,292.80/18,736,939.20 = 9,656,940.80/x
  3. Step 3: Cross multiply
    12,491,292.80x = 18,736,939.20 × 9,656,940.80
  4. Step 4: Simplify right side
    12,491,292.80x = 180,941,512,627,599.38
  5. Step 5: Solve for x
    x = 180,941,512,627,599.38/12,491,292.80
  6. Step 6: Final answer
    x = 14,485,411.20

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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.