Home / 206,008,642.10-308,965,023.66-76,677,160.34

Finding the Fourth Proportional to 206,008,642.10, 308,965,023.66 and 76,677,160.34

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Solution

The fourth proportional to 206,008,642.10, 308,965,023.66 and 76,677,160.34 is: 114,997,897.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,008,642.10 : 308,965,023.66 = 76,677,160.34 : x
  2. Step 2: Convert to fraction form
    206,008,642.10/308,965,023.66 = 76,677,160.34/x
  3. Step 3: Cross multiply
    206,008,642.10x = 308,965,023.66 × 76,677,160.34
  4. Step 4: Simplify right side
    206,008,642.10x = 23,690,560,658,629,716
  5. Step 5: Solve for x
    x = 23,690,560,658,629,716/206,008,642.10
  6. Step 6: Final answer
    x = 114,997,897.26

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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.