Home / 7,149,133.20-10,723,699.80-2,660,480.40

Finding the Fourth Proportional to 7,149,133.20, 10,723,699.80 and 2,660,480.40

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Solution

The fourth proportional to 7,149,133.20, 10,723,699.80 and 2,660,480.40 is: 3,990,720.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149,133.20 : 10,723,699.80 = 2,660,480.40 : x
  2. Step 2: Convert to fraction form
    7,149,133.20/10,723,699.80 = 2,660,480.40/x
  3. Step 3: Cross multiply
    7,149,133.20x = 10,723,699.80 × 2,660,480.40
  4. Step 4: Simplify right side
    7,149,133.20x = 28,530,193,133,383.92
  5. Step 5: Solve for x
    x = 28,530,193,133,383.92/7,149,133.20
  6. Step 6: Final answer
    x = 3,990,720.60

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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.