Home / 206,484,367.95-309,773,214.32-68,309,648.73

Finding the Fourth Proportional to 206,484,367.95, 309,773,214.32 and 68,309,648.73

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Solution

The fourth proportional to 206,484,367.95, 309,773,214.32 and 68,309,648.73 is: 102,479,910.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,484,367.95 : 309,773,214.32 = 68,309,648.73 : x
  2. Step 2: Convert to fraction form
    206,484,367.95/309,773,214.32 = 68,309,648.73/x
  3. Step 3: Cross multiply
    206,484,367.95x = 309,773,214.32 × 68,309,648.73
  4. Step 4: Simplify right side
    206,484,367.95x = 21,160,499,455,820,660
  5. Step 5: Solve for x
    x = 21,160,499,455,820,660/206,484,367.95
  6. Step 6: Final answer
    x = 102,479,910.06

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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.