Home / 189,344,482.20-261,251,010.11-115,002,972.18

Finding the Fourth Proportional to 189,344,482.20, 261,251,010.11 and 115,002,972.18

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Solution

The fourth proportional to 189,344,482.20, 261,251,010.11 and 115,002,972.18 is: 158,677,149.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,344,482.20 : 261,251,010.11 = 115,002,972.18 : x
  2. Step 2: Convert to fraction form
    189,344,482.20/261,251,010.11 = 115,002,972.18/x
  3. Step 3: Cross multiply
    189,344,482.20x = 261,251,010.11 × 115,002,972.18
  4. Step 4: Simplify right side
    189,344,482.20x = 30,044,642,647,964,740
  5. Step 5: Solve for x
    x = 30,044,642,647,964,740/189,344,482.20
  6. Step 6: Final answer
    x = 158,677,149.18

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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.