Home / 5,278,838.88-7,918,255.44-1,913,040.48

Finding the Fourth Proportional to 5,278,838.88, 7,918,255.44 and 1,913,040.48

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Solution

The fourth proportional to 5,278,838.88, 7,918,255.44 and 1,913,040.48 is: 2,869,559.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278,838.88 : 7,918,255.44 = 1,913,040.48 : x
  2. Step 2: Convert to fraction form
    5,278,838.88/7,918,255.44 = 1,913,040.48/x
  3. Step 3: Cross multiply
    5,278,838.88x = 7,918,255.44 × 1,913,040.48
  4. Step 4: Simplify right side
    5,278,838.88x = 15,147,943,187,700.21
  5. Step 5: Solve for x
    x = 15,147,943,187,700.21/5,278,838.88
  6. Step 6: Final answer
    x = 2,869,559.68

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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.