Home / 7,479,320.80-11,218,981.20-6,203,862.40

Finding the Fourth Proportional to 7,479,320.80, 11,218,981.20 and 6,203,862.40

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Solution

The fourth proportional to 7,479,320.80, 11,218,981.20 and 6,203,862.40 is: 9,305,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479,320.80 : 11,218,981.20 = 6,203,862.40 : x
  2. Step 2: Convert to fraction form
    7,479,320.80/11,218,981.20 = 6,203,862.40/x
  3. Step 3: Cross multiply
    7,479,320.80x = 11,218,981.20 × 6,203,862.40
  4. Step 4: Simplify right side
    7,479,320.80x = 69,601,015,632,986.88
  5. Step 5: Solve for x
    x = 69,601,015,632,986.88/7,479,320.80
  6. Step 6: Final answer
    x = 9,305,793.60

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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.