Home / 220,168,832.65-303,815,019.15-129,628,032.18

Finding the Fourth Proportional to 220,168,832.65, 303,815,019.15 and 129,628,032.18

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Solution

The fourth proportional to 220,168,832.65, 303,815,019.15 and 129,628,032.18 is: 178,876,104.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,168,832.65 : 303,815,019.15 = 129,628,032.18 : x
  2. Step 2: Convert to fraction form
    220,168,832.65/303,815,019.15 = 129,628,032.18/x
  3. Step 3: Cross multiply
    220,168,832.65x = 303,815,019.15 × 129,628,032.18
  4. Step 4: Simplify right side
    220,168,832.65x = 39,382,943,079,143,512
  5. Step 5: Solve for x
    x = 39,382,943,079,143,512/220,168,832.65
  6. Step 6: Final answer
    x = 178,876,104.33

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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.