Home / 28,915,004.48-39,902,473.24-15,684,148.56

Finding the Fourth Proportional to 28,915,004.48, 39,902,473.24 and 15,684,148.56

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Solution

The fourth proportional to 28,915,004.48, 39,902,473.24 and 15,684,148.56 is: 21,643,998.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,915,004.48 : 39,902,473.24 = 15,684,148.56 : x
  2. Step 2: Convert to fraction form
    28,915,004.48/39,902,473.24 = 15,684,148.56/x
  3. Step 3: Cross multiply
    28,915,004.48x = 39,902,473.24 × 15,684,148.56
  4. Step 4: Simplify right side
    28,915,004.48x = 625,836,318,207,584.62
  5. Step 5: Solve for x
    x = 625,836,318,207,584.62/28,915,004.48
  6. Step 6: Final answer
    x = 21,643,998.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.