Home / 136,206,813.60-204,310,220.40-90,620,791.20

Finding the Fourth Proportional to 136,206,813.60, 204,310,220.40 and 90,620,791.20

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Solution

The fourth proportional to 136,206,813.60, 204,310,220.40 and 90,620,791.20 is: 135,931,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,206,813.60 : 204,310,220.40 = 90,620,791.20 : x
  2. Step 2: Convert to fraction form
    136,206,813.60/204,310,220.40 = 90,620,791.20/x
  3. Step 3: Cross multiply
    136,206,813.60x = 204,310,220.40 × 90,620,791.20
  4. Step 4: Simplify right side
    136,206,813.60x = 18,514,753,822,894,380
  5. Step 5: Solve for x
    x = 18,514,753,822,894,380/136,206,813.60
  6. Step 6: Final answer
    x = 135,931,186.80

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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.