Home / 66,144,020.60-99,209,611.70-20,086,286.20

Finding the Fourth Proportional to 66,144,020.60, 99,209,611.70 and 20,086,286.20

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Solution

The fourth proportional to 66,144,020.60, 99,209,611.70 and 20,086,286.20 is: 30,127,479.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,144,020.60 : 99,209,611.70 = 20,086,286.20 : x
  2. Step 2: Convert to fraction form
    66,144,020.60/99,209,611.70 = 20,086,286.20/x
  3. Step 3: Cross multiply
    66,144,020.60x = 99,209,611.70 × 20,086,286.20
  4. Step 4: Simplify right side
    66,144,020.60x = 1,992,752,654,397,068.50
  5. Step 5: Solve for x
    x = 1,992,752,654,397,068.50/66,144,020.60
  6. Step 6: Final answer
    x = 30,127,479.95

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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.