Home / 279,796,059.38-418,820,718.24-206,102,921.28

Finding the Fourth Proportional to 279,796,059.38, 418,820,718.24 and 206,102,921.28

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Solution

The fourth proportional to 279,796,059.38, 418,820,718.24 and 206,102,921.28 is: 308,511,040.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,796,059.38 : 418,820,718.24 = 206,102,921.28 : x
  2. Step 2: Convert to fraction form
    279,796,059.38/418,820,718.24 = 206,102,921.28/x
  3. Step 3: Cross multiply
    279,796,059.38x = 418,820,718.24 × 206,102,921.28
  4. Step 4: Simplify right side
    279,796,059.38x = 86,320,173,521,851,776
  5. Step 5: Solve for x
    x = 86,320,173,521,851,776/279,796,059.38
  6. Step 6: Final answer
    x = 308,511,040.92

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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.