Home / 5,115,168.09-7,057,878.22-2,939,290.86

Finding the Fourth Proportional to 5,115,168.09, 7,057,878.22 and 2,939,290.86

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Solution

The fourth proportional to 5,115,168.09, 7,057,878.22 and 2,939,290.86 is: 4,055,615.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115,168.09 : 7,057,878.22 = 2,939,290.86 : x
  2. Step 2: Convert to fraction form
    5,115,168.09/7,057,878.22 = 2,939,290.86/x
  3. Step 3: Cross multiply
    5,115,168.09x = 7,057,878.22 × 2,939,290.86
  4. Step 4: Simplify right side
    5,115,168.09x = 20,745,156,935,690.84
  5. Step 5: Solve for x
    x = 20,745,156,935,690.84/5,115,168.09
  6. Step 6: Final answer
    x = 4,055,615.88

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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.