Home / 12,431,999.70-18,647,999.55-9,072,767.70

Finding the Fourth Proportional to 12,431,999.70, 18,647,999.55 and 9,072,767.70

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Solution

The fourth proportional to 12,431,999.70, 18,647,999.55 and 9,072,767.70 is: 13,609,151.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,431,999.70 : 18,647,999.55 = 9,072,767.70 : x
  2. Step 2: Convert to fraction form
    12,431,999.70/18,647,999.55 = 9,072,767.70/x
  3. Step 3: Cross multiply
    12,431,999.70x = 18,647,999.55 × 9,072,767.70
  4. Step 4: Simplify right side
    12,431,999.70x = 169,188,967,986,854.53
  5. Step 5: Solve for x
    x = 169,188,967,986,854.53/12,431,999.70
  6. Step 6: Final answer
    x = 13,609,151.55

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1.5x scale

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.