Home / 5,138,349.46-7,090,589.73-2,815,238.80

Finding the Fourth Proportional to 5,138,349.46, 7,090,589.73 and 2,815,238.80

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Solution

The fourth proportional to 5,138,349.46, 7,090,589.73 and 2,815,238.80 is: 3,884,847.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138,349.46 : 7,090,589.73 = 2,815,238.80 : x
  2. Step 2: Convert to fraction form
    5,138,349.46/7,090,589.73 = 2,815,238.80/x
  3. Step 3: Cross multiply
    5,138,349.46x = 7,090,589.73 × 2,815,238.80
  4. Step 4: Simplify right side
    5,138,349.46x = 19,961,703,322,777.52
  5. Step 5: Solve for x
    x = 19,961,703,322,777.52/5,138,349.46
  6. Step 6: Final answer
    x = 3,884,847.36

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Double scale
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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.