Home / 208,765,010.40-313,067,733.36-68,672,876.64

Finding the Fourth Proportional to 208,765,010.40, 313,067,733.36 and 68,672,876.64

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Solution

The fourth proportional to 208,765,010.40, 313,067,733.36 and 68,672,876.64 is: 102,983,070.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,765,010.40 : 313,067,733.36 = 68,672,876.64 : x
  2. Step 2: Convert to fraction form
    208,765,010.40/313,067,733.36 = 68,672,876.64/x
  3. Step 3: Cross multiply
    208,765,010.40x = 313,067,733.36 × 68,672,876.64
  4. Step 4: Simplify right side
    208,765,010.40x = 21,499,261,832,995,692
  5. Step 5: Solve for x
    x = 21,499,261,832,995,692/208,765,010.40
  6. Step 6: Final answer
    x = 102,983,070.73

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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.