Home / 12,420,675.81-18,631,013.72-3,445,227.81

Finding the Fourth Proportional to 12,420,675.81, 18,631,013.72 and 3,445,227.81

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Solution

The fourth proportional to 12,420,675.81, 18,631,013.72 and 3,445,227.81 is: 5,167,841.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,420,675.81 : 18,631,013.72 = 3,445,227.81 : x
  2. Step 2: Convert to fraction form
    12,420,675.81/18,631,013.72 = 3,445,227.81/x
  3. Step 3: Cross multiply
    12,420,675.81x = 18,631,013.72 × 3,445,227.81
  4. Step 4: Simplify right side
    12,420,675.81x = 64,188,086,638,906.55
  5. Step 5: Solve for x
    x = 64,188,086,638,906.55/12,420,675.81
  6. Step 6: Final answer
    x = 5,167,841.72

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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.