Home / 8,198,728.40-12,305,528.40-4,158,027.20

Finding the Fourth Proportional to 8,198,728.40, 12,305,528.40 and 4,158,027.20

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Solution

The fourth proportional to 8,198,728.40, 12,305,528.40 and 4,158,027.20 is: 6,240,811.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,198,728.40 : 12,305,528.40 = 4,158,027.20 : x
  2. Step 2: Convert to fraction form
    8,198,728.40/12,305,528.40 = 4,158,027.20/x
  3. Step 3: Cross multiply
    8,198,728.40x = 12,305,528.40 × 4,158,027.20
  4. Step 4: Simplify right side
    8,198,728.40x = 51,166,721,797,572.48
  5. Step 5: Solve for x
    x = 51,166,721,797,572.48/8,198,728.40
  6. Step 6: Final answer
    x = 6,240,811.90

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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.