Home / 280,252,685.11-386,760,454.96-161,175,370.30

Finding the Fourth Proportional to 280,252,685.11, 386,760,454.96 and 161,175,370.30

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Solution

The fourth proportional to 280,252,685.11, 386,760,454.96 and 161,175,370.30 is: 222,428,768.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,252,685.11 : 386,760,454.96 = 161,175,370.30 : x
  2. Step 2: Convert to fraction form
    280,252,685.11/386,760,454.96 = 161,175,370.30/x
  3. Step 3: Cross multiply
    280,252,685.11x = 386,760,454.96 × 161,175,370.30
  4. Step 4: Simplify right side
    280,252,685.11x = 62,336,259,546,944,312
  5. Step 5: Solve for x
    x = 62,336,259,546,944,312/280,252,685.11
  6. Step 6: Final answer
    x = 222,428,768.25

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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.