Home / 8,311,990.40-12,446,990.40-5,456,643.20

Finding the Fourth Proportional to 8,311,990.40, 12,446,990.40 and 5,456,643.20

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Solution

The fourth proportional to 8,311,990.40, 12,446,990.40 and 5,456,643.20 is: 8,171,181.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311,990.40 : 12,446,990.40 = 5,456,643.20 : x
  2. Step 2: Convert to fraction form
    8,311,990.40/12,446,990.40 = 5,456,643.20/x
  3. Step 3: Cross multiply
    8,311,990.40x = 12,446,990.40 × 5,456,643.20
  4. Step 4: Simplify right side
    8,311,990.40x = 67,918,785,526,625.28
  5. Step 5: Solve for x
    x = 67,918,785,526,625.28/8,311,990.40
  6. Step 6: Final answer
    x = 8,171,181.90

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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.