Home / 5,387,151.80-7,434,427.91-2,939,921.28

Finding the Fourth Proportional to 5,387,151.80, 7,434,427.91 and 2,939,921.28

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Solution

The fourth proportional to 5,387,151.80, 7,434,427.91 and 2,939,921.28 is: 4,057,177.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387,151.80 : 7,434,427.91 = 2,939,921.28 : x
  2. Step 2: Convert to fraction form
    5,387,151.80/7,434,427.91 = 2,939,921.28/x
  3. Step 3: Cross multiply
    5,387,151.80x = 7,434,427.91 × 2,939,921.28
  4. Step 4: Simplify right side
    5,387,151.80x = 21,856,632,817,234.92
  5. Step 5: Solve for x
    x = 21,856,632,817,234.92/5,387,151.80
  6. Step 6: Final answer
    x = 4,057,177.82

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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.