Home / 211,009,196.12-316,131,151.78-206,417,545.88

Finding the Fourth Proportional to 211,009,196.12, 316,131,151.78 and 206,417,545.88

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Solution

The fourth proportional to 211,009,196.12, 316,131,151.78 and 206,417,545.88 is: 309,252,002.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,009,196.12 : 316,131,151.78 = 206,417,545.88 : x
  2. Step 2: Convert to fraction form
    211,009,196.12/316,131,151.78 = 206,417,545.88/x
  3. Step 3: Cross multiply
    211,009,196.12x = 316,131,151.78 × 206,417,545.88
  4. Step 4: Simplify right side
    211,009,196.12x = 65,255,016,526,645,384
  5. Step 5: Solve for x
    x = 65,255,016,526,645,384/211,009,196.12
  6. Step 6: Final answer
    x = 309,252,002.88

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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.