Home / 206,008,852.34-308,965,338.66-76,677,370.58

Finding the Fourth Proportional to 206,008,852.34, 308,965,338.66 and 76,677,370.58

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Solution

The fourth proportional to 206,008,852.34, 308,965,338.66 and 76,677,370.58 is: 114,998,212.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,008,852.34 : 308,965,338.66 = 76,677,370.58 : x
  2. Step 2: Convert to fraction form
    206,008,852.34/308,965,338.66 = 76,677,370.58/x
  3. Step 3: Cross multiply
    206,008,852.34x = 308,965,338.66 × 76,677,370.58
  4. Step 4: Simplify right side
    206,008,852.34x = 23,690,649,768,808,024
  5. Step 5: Solve for x
    x = 23,690,649,768,808,024/206,008,852.34
  6. Step 6: Final answer
    x = 114,998,212.45

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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.