Home / 6,908,378.40-10,362,470.40-3,121,855.20

Finding the Fourth Proportional to 6,908,378.40, 10,362,470.40 and 3,121,855.20

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Solution

The fourth proportional to 6,908,378.40, 10,362,470.40 and 3,121,855.20 is: 4,682,738.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,908,378.40 : 10,362,470.40 = 3,121,855.20 : x
  2. Step 2: Convert to fraction form
    6,908,378.40/10,362,470.40 = 3,121,855.20/x
  3. Step 3: Cross multiply
    6,908,378.40x = 10,362,470.40 × 3,121,855.20
  4. Step 4: Simplify right side
    6,908,378.40x = 32,350,132,103,086.08
  5. Step 5: Solve for x
    x = 32,350,132,103,086.08/6,908,378.40
  6. Step 6: Final answer
    x = 4,682,738.88

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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.