Home / 211,009,195.12-316,131,150.28-206,417,544.88

Finding the Fourth Proportional to 211,009,195.12, 316,131,150.28 and 206,417,544.88

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Solution

The fourth proportional to 211,009,195.12, 316,131,150.28 and 206,417,544.88 is: 309,252,001.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,009,195.12 : 316,131,150.28 = 206,417,544.88 : x
  2. Step 2: Convert to fraction form
    211,009,195.12/316,131,150.28 = 206,417,544.88/x
  3. Step 3: Cross multiply
    211,009,195.12x = 316,131,150.28 × 206,417,544.88
  4. Step 4: Simplify right side
    211,009,195.12x = 65,255,015,900,887,920
  5. Step 5: Solve for x
    x = 65,255,015,900,887,920/211,009,195.12
  6. Step 6: Final answer
    x = 309,252,001.38

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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.