Home / 28,912,544.85-43,382,061.18-12,522,842.31

Finding the Fourth Proportional to 28,912,544.85, 43,382,061.18 and 12,522,842.31

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Solution

The fourth proportional to 28,912,544.85, 43,382,061.18 and 12,522,842.31 is: 18,789,999.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,912,544.85 : 43,382,061.18 = 12,522,842.31 : x
  2. Step 2: Convert to fraction form
    28,912,544.85/43,382,061.18 = 12,522,842.31/x
  3. Step 3: Cross multiply
    28,912,544.85x = 43,382,061.18 × 12,522,842.31
  4. Step 4: Simplify right side
    28,912,544.85x = 543,266,711,239,912.56
  5. Step 5: Solve for x
    x = 543,266,711,239,912.56/28,912,544.85
  6. Step 6: Final answer
    x = 18,789,999.78

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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.