Home / 28,924,812.92-39,916,131.36-15,872,290.04

Finding the Fourth Proportional to 28,924,812.92, 39,916,131.36 and 15,872,290.04

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Solution

The fourth proportional to 28,924,812.92, 39,916,131.36 and 15,872,290.04 is: 21,903,699.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,924,812.92 : 39,916,131.36 = 15,872,290.04 : x
  2. Step 2: Convert to fraction form
    28,924,812.92/39,916,131.36 = 15,872,290.04/x
  3. Step 3: Cross multiply
    28,924,812.92x = 39,916,131.36 × 15,872,290.04
  4. Step 4: Simplify right side
    28,924,812.92x = 633,560,414,220,659.62
  5. Step 5: Solve for x
    x = 633,560,414,220,659.62/28,924,812.92
  6. Step 6: Final answer
    x = 21,903,699.64

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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.