Home / 261,718,685.34-361,167,100.12-142,642,350.06

Finding the Fourth Proportional to 261,718,685.34, 361,167,100.12 and 142,642,350.06

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Solution

The fourth proportional to 261,718,685.34, 361,167,100.12 and 142,642,350.06 is: 196,843,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,718,685.34 : 361,167,100.12 = 142,642,350.06 : x
  2. Step 2: Convert to fraction form
    261,718,685.34/361,167,100.12 = 142,642,350.06/x
  3. Step 3: Cross multiply
    261,718,685.34x = 361,167,100.12 × 142,642,350.06
  4. Step 4: Simplify right side
    261,718,685.34x = 51,517,723,925,472,112
  5. Step 5: Solve for x
    x = 51,517,723,925,472,112/261,718,685.34
  6. Step 6: Final answer
    x = 196,843,889.30

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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.