Home / 6,990,489.12-10,489,809.60-2,946,729.36

Finding the Fourth Proportional to 6,990,489.12, 10,489,809.60 and 2,946,729.36

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Solution

The fourth proportional to 6,990,489.12, 10,489,809.60 and 2,946,729.36 is: 4,421,812.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990,489.12 : 10,489,809.60 = 2,946,729.36 : x
  2. Step 2: Convert to fraction form
    6,990,489.12/10,489,809.60 = 2,946,729.36/x
  3. Step 3: Cross multiply
    6,990,489.12x = 10,489,809.60 × 2,946,729.36
  4. Step 4: Simplify right side
    6,990,489.12x = 30,910,629,929,129.86
  5. Step 5: Solve for x
    x = 30,910,629,929,129.86/6,990,489.12
  6. Step 6: Final answer
    x = 4,421,812.18

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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.