Home / 136,206,830.10-204,310,245.15-90,620,807.70

Finding the Fourth Proportional to 136,206,830.10, 204,310,245.15 and 90,620,807.70

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Solution

The fourth proportional to 136,206,830.10, 204,310,245.15 and 90,620,807.70 is: 135,931,211.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,206,830.10 : 204,310,245.15 = 90,620,807.70 : x
  2. Step 2: Convert to fraction form
    136,206,830.10/204,310,245.15 = 90,620,807.70/x
  3. Step 3: Cross multiply
    136,206,830.10x = 204,310,245.15 × 90,620,807.70
  4. Step 4: Simplify right side
    136,206,830.10x = 18,514,759,436,878,008
  5. Step 5: Solve for x
    x = 18,514,759,436,878,008/136,206,830.10
  6. Step 6: Final answer
    x = 135,931,211.55

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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.