Home / 206,484,274.88-309,773,074.29-68,309,555.20

Finding the Fourth Proportional to 206,484,274.88, 309,773,074.29 and 68,309,555.20

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Solution

The fourth proportional to 206,484,274.88, 309,773,074.29 and 68,309,555.20 is: 102,479,769.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,484,274.88 : 309,773,074.29 = 68,309,555.20 : x
  2. Step 2: Convert to fraction form
    206,484,274.88/309,773,074.29 = 68,309,555.20/x
  3. Step 3: Cross multiply
    206,484,274.88x = 309,773,074.29 × 68,309,555.20
  4. Step 4: Simplify right side
    206,484,274.88x = 21,160,460,917,323,772
  5. Step 5: Solve for x
    x = 21,160,460,917,323,772/206,484,274.88
  6. Step 6: Final answer
    x = 102,479,769.61

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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.