Home / 289,203,694.20-399,100,643.10-158,823,502.20

Finding the Fourth Proportional to 289,203,694.20, 399,100,643.10 and 158,823,502.20

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Solution

The fourth proportional to 289,203,694.20, 399,100,643.10 and 158,823,502.20 is: 219,176,183.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,203,694.20 : 399,100,643.10 = 158,823,502.20 : x
  2. Step 2: Convert to fraction form
    289,203,694.20/399,100,643.10 = 158,823,502.20/x
  3. Step 3: Cross multiply
    289,203,694.20x = 399,100,643.10 × 158,823,502.20
  4. Step 4: Simplify right side
    289,203,694.20x = 63,386,561,867,414,264
  5. Step 5: Solve for x
    x = 63,386,561,867,414,264/289,203,694.20
  6. Step 6: Final answer
    x = 219,176,183.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.