Home / 312,984,010.80-469,476,016.20-198,098,276.40

Finding the Fourth Proportional to 312,984,010.80, 469,476,016.20 and 198,098,276.40

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Solution

The fourth proportional to 312,984,010.80, 469,476,016.20 and 198,098,276.40 is: 297,147,414.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,984,010.80 : 469,476,016.20 = 198,098,276.40 : x
  2. Step 2: Convert to fraction form
    312,984,010.80/469,476,016.20 = 198,098,276.40/x
  3. Step 3: Cross multiply
    312,984,010.80x = 469,476,016.20 × 198,098,276.40
  4. Step 4: Simplify right side
    312,984,010.80x = 93,002,389,620,358,480
  5. Step 5: Solve for x
    x = 93,002,389,620,358,480/312,984,010.80
  6. Step 6: Final answer
    x = 297,147,414.60

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1.5x scale

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.