Home / 5,115,169.79-7,057,880.55-2,939,292.55

Finding the Fourth Proportional to 5,115,169.79, 7,057,880.55 and 2,939,292.55

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Solution

The fourth proportional to 5,115,169.79, 7,057,880.55 and 2,939,292.55 is: 4,055,618.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115,169.79 : 7,057,880.55 = 2,939,292.55 : x
  2. Step 2: Convert to fraction form
    5,115,169.79/7,057,880.55 = 2,939,292.55/x
  3. Step 3: Cross multiply
    5,115,169.79x = 7,057,880.55 × 2,939,292.55
  4. Step 4: Simplify right side
    5,115,169.79x = 20,745,175,701,760.20
  5. Step 5: Solve for x
    x = 20,745,175,701,760.20/5,115,169.79
  6. Step 6: Final answer
    x = 4,055,618.21

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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.