Home / 5,180,153.60-7,765,799.88-1,987,571

Finding the Fourth Proportional to 5,180,153.60, 7,765,799.88 and 1,987,571

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Solution

The fourth proportional to 5,180,153.60, 7,765,799.88 and 1,987,571 is: 2,979,656.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180,153.60 : 7,765,799.88 = 1,987,571 : x
  2. Step 2: Convert to fraction form
    5,180,153.60/7,765,799.88 = 1,987,571/x
  3. Step 3: Cross multiply
    5,180,153.60x = 7,765,799.88 × 1,987,571
  4. Step 4: Simplify right side
    5,180,153.60x = 15,435,078,633,291.48
  5. Step 5: Solve for x
    x = 15,435,078,633,291.48/5,180,153.60
  6. Step 6: Final answer
    x = 2,979,656.56

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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.