Home / 147,115,396.28-203,016,766.56-81,042,075.20

Finding the Fourth Proportional to 147,115,396.28, 203,016,766.56 and 81,042,075.20

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Solution

The fourth proportional to 147,115,396.28, 203,016,766.56 and 81,042,075.20 is: 111,836,697.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,115,396.28 : 203,016,766.56 = 81,042,075.20 : x
  2. Step 2: Convert to fraction form
    147,115,396.28/203,016,766.56 = 81,042,075.20/x
  3. Step 3: Cross multiply
    147,115,396.28x = 203,016,766.56 × 81,042,075.20
  4. Step 4: Simplify right side
    147,115,396.28x = 16,452,900,062,416,366
  5. Step 5: Solve for x
    x = 16,452,900,062,416,366/147,115,396.28
  6. Step 6: Final answer
    x = 111,836,697.44

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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.