Home / 252,304,672.80-378,457,009.20-68,071,792.80

Finding the Fourth Proportional to 252,304,672.80, 378,457,009.20 and 68,071,792.80

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Solution

The fourth proportional to 252,304,672.80, 378,457,009.20 and 68,071,792.80 is: 102,107,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,304,672.80 : 378,457,009.20 = 68,071,792.80 : x
  2. Step 2: Convert to fraction form
    252,304,672.80/378,457,009.20 = 68,071,792.80/x
  3. Step 3: Cross multiply
    252,304,672.80x = 378,457,009.20 × 68,071,792.80
  4. Step 4: Simplify right side
    252,304,672.80x = 25,762,247,113,970,092
  5. Step 5: Solve for x
    x = 25,762,247,113,970,092/252,304,672.80
  6. Step 6: Final answer
    x = 102,107,689.20

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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.