Home / 211,540,816.62-317,385,257.31-82,239,154.61

Finding the Fourth Proportional to 211,540,816.62, 317,385,257.31 and 82,239,154.61

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Solution

The fourth proportional to 211,540,816.62, 317,385,257.31 and 82,239,154.61 is: 123,387,512.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,540,816.62 : 317,385,257.31 = 82,239,154.61 : x
  2. Step 2: Convert to fraction form
    211,540,816.62/317,385,257.31 = 82,239,154.61/x
  3. Step 3: Cross multiply
    211,540,816.62x = 317,385,257.31 × 82,239,154.61
  4. Step 4: Simplify right side
    211,540,816.62x = 26,101,495,245,264,796
  5. Step 5: Solve for x
    x = 26,101,495,245,264,796/211,540,816.62
  6. Step 6: Final answer
    x = 123,387,512.93

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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.