Home / 177,988,277.20-266,982,415.80-165,517,128.40

Finding the Fourth Proportional to 177,988,277.20, 266,982,415.80 and 165,517,128.40

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Solution

The fourth proportional to 177,988,277.20, 266,982,415.80 and 165,517,128.40 is: 248,275,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,988,277.20 : 266,982,415.80 = 165,517,128.40 : x
  2. Step 2: Convert to fraction form
    177,988,277.20/266,982,415.80 = 165,517,128.40/x
  3. Step 3: Cross multiply
    177,988,277.20x = 266,982,415.80 × 165,517,128.40
  4. Step 4: Simplify right side
    177,988,277.20x = 44,190,162,796,510,792
  5. Step 5: Solve for x
    x = 44,190,162,796,510,792/177,988,277.20
  6. Step 6: Final answer
    x = 248,275,692.60

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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.