Home / 199,287,308.80-298,930,963.20-70,040,857.60

Finding the Fourth Proportional to 199,287,308.80, 298,930,963.20 and 70,040,857.60

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Solution

The fourth proportional to 199,287,308.80, 298,930,963.20 and 70,040,857.60 is: 105,061,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,287,308.80 : 298,930,963.20 = 70,040,857.60 : x
  2. Step 2: Convert to fraction form
    199,287,308.80/298,930,963.20 = 70,040,857.60/x
  3. Step 3: Cross multiply
    199,287,308.80x = 298,930,963.20 × 70,040,857.60
  4. Step 4: Simplify right side
    199,287,308.80x = 20,937,381,025,722,036
  5. Step 5: Solve for x
    x = 20,937,381,025,722,036/199,287,308.80
  6. Step 6: Final answer
    x = 105,061,286.40

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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.