Home / 168,075,077.97-231,943,608.05-90,812,741.97

Finding the Fourth Proportional to 168,075,077.97, 231,943,608.05 and 90,812,741.97

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Solution

The fourth proportional to 168,075,077.97, 231,943,608.05 and 90,812,741.97 is: 125,321,584.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,075,077.97 : 231,943,608.05 = 90,812,741.97 : x
  2. Step 2: Convert to fraction form
    168,075,077.97/231,943,608.05 = 90,812,741.97/x
  3. Step 3: Cross multiply
    168,075,077.97x = 231,943,608.05 × 90,812,741.97
  4. Step 4: Simplify right side
    168,075,077.97x = 21,063,435,028,981,400
  5. Step 5: Solve for x
    x = 21,063,435,028,981,400/168,075,077.97
  6. Step 6: Final answer
    x = 125,321,584.16

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1.5x scale

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.