Home / 6,440,100.64-8,883,788.88-5,230,777.12

Finding the Fourth Proportional to 6,440,100.64, 8,883,788.88 and 5,230,777.12

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Solution

The fourth proportional to 6,440,100.64, 8,883,788.88 and 5,230,777.12 is: 7,215,589.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440,100.64 : 8,883,788.88 = 5,230,777.12 : x
  2. Step 2: Convert to fraction form
    6,440,100.64/8,883,788.88 = 5,230,777.12/x
  3. Step 3: Cross multiply
    6,440,100.64x = 8,883,788.88 × 5,230,777.12
  4. Step 4: Simplify right side
    6,440,100.64x = 46,469,119,612,414.43
  5. Step 5: Solve for x
    x = 46,469,119,612,414.43/6,440,100.64
  6. Step 6: Final answer
    x = 7,215,589.04

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1.5x scale

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.