Home / 12,456,063.75-18,681,941.13-5,631,049.72

Finding the Fourth Proportional to 12,456,063.75, 18,681,941.13 and 5,631,049.72

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Solution

The fourth proportional to 12,456,063.75, 18,681,941.13 and 5,631,049.72 is: 8,445,600.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,063.75 : 18,681,941.13 = 5,631,049.72 : x
  2. Step 2: Convert to fraction form
    12,456,063.75/18,681,941.13 = 5,631,049.72/x
  3. Step 3: Cross multiply
    12,456,063.75x = 18,681,941.13 × 5,631,049.72
  4. Step 4: Simplify right side
    12,456,063.75x = 105,198,939,369,142.97
  5. Step 5: Solve for x
    x = 105,198,939,369,142.97/12,456,063.75
  6. Step 6: Final answer
    x = 8,445,600.59

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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.