Home / 261,839,694.96-392,775,288.36-80,088,447.60

Finding the Fourth Proportional to 261,839,694.96, 392,775,288.36 and 80,088,447.60

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Solution

The fourth proportional to 261,839,694.96, 392,775,288.36 and 80,088,447.60 is: 120,137,487.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,839,694.96 : 392,775,288.36 = 80,088,447.60 : x
  2. Step 2: Convert to fraction form
    261,839,694.96/392,775,288.36 = 80,088,447.60/x
  3. Step 3: Cross multiply
    261,839,694.96x = 392,775,288.36 × 80,088,447.60
  4. Step 4: Simplify right side
    261,839,694.96x = 31,456,763,100,394,748
  5. Step 5: Solve for x
    x = 31,456,763,100,394,748/261,839,694.96
  6. Step 6: Final answer
    x = 120,137,487.58

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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.