Home / 728,419,338.50-1,092,638,308.41-210,850,277.21

Finding the Fourth Proportional to 728,419,338.50, 1,092,638,308.41 and 210,850,277.21

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Solution

The fourth proportional to 728,419,338.50, 1,092,638,308.41 and 210,850,277.21 is: 316,278,108.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,419,338.50 : 1,092,638,308.41 = 210,850,277.21 : x
  2. Step 2: Convert to fraction form
    728,419,338.50/1,092,638,308.41 = 210,850,277.21/x
  3. Step 3: Cross multiply
    728,419,338.50x = 1,092,638,308.41 × 210,850,277.21
  4. Step 4: Simplify right side
    728,419,338.50x = 230,383,090,218,514,016
  5. Step 5: Solve for x
    x = 230,383,090,218,514,016/728,419,338.50
  6. Step 6: Final answer
    x = 316,278,108.01

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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.