Home / 427,290,191.04-640,916,026.44-178,192,873.92

Finding the Fourth Proportional to 427,290,191.04, 640,916,026.44 and 178,192,873.92

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Solution

The fourth proportional to 427,290,191.04, 640,916,026.44 and 178,192,873.92 is: 267,281,278.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,290,191.04 : 640,916,026.44 = 178,192,873.92 : x
  2. Step 2: Convert to fraction form
    427,290,191.04/640,916,026.44 = 178,192,873.92/x
  3. Step 3: Cross multiply
    427,290,191.04x = 640,916,026.44 × 178,192,873.92
  4. Step 4: Simplify right side
    427,290,191.04x = 114,206,668,692,730,304
  5. Step 5: Solve for x
    x = 114,206,668,692,730,304/427,290,191.04
  6. Step 6: Final answer
    x = 267,281,278.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.