Home / 12,253,295.80-18,379,943.70-7,718,332.60

Finding the Fourth Proportional to 12,253,295.80, 18,379,943.70 and 7,718,332.60

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Solution

The fourth proportional to 12,253,295.80, 18,379,943.70 and 7,718,332.60 is: 11,577,498.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253,295.80 : 18,379,943.70 = 7,718,332.60 : x
  2. Step 2: Convert to fraction form
    12,253,295.80/18,379,943.70 = 7,718,332.60/x
  3. Step 3: Cross multiply
    12,253,295.80x = 18,379,943.70 × 7,718,332.60
  4. Step 4: Simplify right side
    12,253,295.80x = 141,862,518,645,874.59
  5. Step 5: Solve for x
    x = 141,862,518,645,874.59/12,253,295.80
  6. Step 6: Final answer
    x = 11,577,498.90

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Similar ratio
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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.