Home / 117,199,519.21-161,738,306.11-64,278,333.74

Finding the Fourth Proportional to 117,199,519.21, 161,738,306.11 and 64,278,333.74

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Solution

The fourth proportional to 117,199,519.21, 161,738,306.11 and 64,278,333.74 is: 88,705,729.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,199,519.21 : 161,738,306.11 = 64,278,333.74 : x
  2. Step 2: Convert to fraction form
    117,199,519.21/161,738,306.11 = 64,278,333.74/x
  3. Step 3: Cross multiply
    117,199,519.21x = 161,738,306.11 × 64,278,333.74
  4. Step 4: Simplify right side
    117,199,519.21x = 10,396,268,819,165,556
  5. Step 5: Solve for x
    x = 10,396,268,819,165,556/117,199,519.21
  6. Step 6: Final answer
    x = 88,705,729.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.