Home / 7,253,995.12-10,010,513.16-3,990,739.78

Finding the Fourth Proportional to 7,253,995.12, 10,010,513.16 and 3,990,739.78

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Solution

The fourth proportional to 7,253,995.12, 10,010,513.16 and 3,990,739.78 is: 5,507,220.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,253,995.12 : 10,010,513.16 = 3,990,739.78 : x
  2. Step 2: Convert to fraction form
    7,253,995.12/10,010,513.16 = 3,990,739.78/x
  3. Step 3: Cross multiply
    7,253,995.12x = 10,010,513.16 × 3,990,739.78
  4. Step 4: Simplify right side
    7,253,995.12x = 39,949,353,085,825.50
  5. Step 5: Solve for x
    x = 39,949,353,085,825.50/7,253,995.12
  6. Step 6: Final answer
    x = 5,507,220.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.