Home / 12,426,665.12-18,631,331.78-5,506,380.66

Finding the Fourth Proportional to 12,426,665.12, 18,631,331.78 and 5,506,380.66

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Solution

The fourth proportional to 12,426,665.12, 18,631,331.78 and 5,506,380.66 is: 8,255,731.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,426,665.12 : 18,631,331.78 = 5,506,380.66 : x
  2. Step 2: Convert to fraction form
    12,426,665.12/18,631,331.78 = 5,506,380.66/x
  3. Step 3: Cross multiply
    12,426,665.12x = 18,631,331.78 × 5,506,380.66
  4. Step 4: Simplify right side
    12,426,665.12x = 102,591,204,920,969.72
  5. Step 5: Solve for x
    x = 102,591,204,920,969.72/12,426,665.12
  6. Step 6: Final answer
    x = 8,255,731.04

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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.