Home / 5,180,154.60-7,765,801.38-1,987,572

Finding the Fourth Proportional to 5,180,154.60, 7,765,801.38 and 1,987,572

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Solution

The fourth proportional to 5,180,154.60, 7,765,801.38 and 1,987,572 is: 2,979,658.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180,154.60 : 7,765,801.38 = 1,987,572 : x
  2. Step 2: Convert to fraction form
    5,180,154.60/7,765,801.38 = 1,987,572/x
  3. Step 3: Cross multiply
    5,180,154.60x = 7,765,801.38 × 1,987,572
  4. Step 4: Simplify right side
    5,180,154.60x = 15,435,089,380,449.36
  5. Step 5: Solve for x
    x = 15,435,089,380,449.36/5,180,154.60
  6. Step 6: Final answer
    x = 2,979,658.06

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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.