Home / 120,198,889,020.64-180,304,132,244.43-39,522,806,287.11

Finding the Fourth Proportional to 120,198,889,020.64, 180,304,132,244.43 and 39,522,806,287.11

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Solution

The fourth proportional to 120,198,889,020.64, 180,304,132,244.43 and 39,522,806,287.11 is: 59,286,116,115.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,198,889,020.64 : 180,304,132,244.43 = 39,522,806,287.11 : x
  2. Step 2: Convert to fraction form
    120,198,889,020.64/180,304,132,244.43 = 39,522,806,287.11/x
  3. Step 3: Cross multiply
    120,198,889,020.64x = 180,304,132,244.43 × 39,522,806,287.11
  4. Step 4: Simplify right side
    120,198,889,020.64x = 7,126,125,291,462,070,370,304
  5. Step 5: Solve for x
    x = 7,126,125,291,462,070,370,304/120,198,889,020.64
  6. Step 6: Final answer
    x = 59,286,116,115.75

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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.