Home / 126,878,667.78-175,101,225.21-71,874,976.26

Finding the Fourth Proportional to 126,878,667.78, 175,101,225.21 and 71,874,976.26

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Solution

The fourth proportional to 126,878,667.78, 175,101,225.21 and 71,874,976.26 is: 99,192,375.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,878,667.78 : 175,101,225.21 = 71,874,976.26 : x
  2. Step 2: Convert to fraction form
    126,878,667.78/175,101,225.21 = 71,874,976.26/x
  3. Step 3: Cross multiply
    126,878,667.78x = 175,101,225.21 × 71,874,976.26
  4. Step 4: Simplify right side
    126,878,667.78x = 12,585,396,405,065,666
  5. Step 5: Solve for x
    x = 12,585,396,405,065,666/126,878,667.78
  6. Step 6: Final answer
    x = 99,192,375.09

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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.