Home / 412,078,414.20-618,117,621.30-105,394,529.40

Finding the Fourth Proportional to 412,078,414.20, 618,117,621.30 and 105,394,529.40

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Solution

The fourth proportional to 412,078,414.20, 618,117,621.30 and 105,394,529.40 is: 158,091,794.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,078,414.20 : 618,117,621.30 = 105,394,529.40 : x
  2. Step 2: Convert to fraction form
    412,078,414.20/618,117,621.30 = 105,394,529.40/x
  3. Step 3: Cross multiply
    412,078,414.20x = 618,117,621.30 × 105,394,529.40
  4. Step 4: Simplify right side
    412,078,414.20x = 65,146,215,810,760,912
  5. Step 5: Solve for x
    x = 65,146,215,810,760,912/412,078,414.20
  6. Step 6: Final answer
    x = 158,091,794.10

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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.