Home / 3,986,987.10-5,986,385.55-3,089,442.30

Finding the Fourth Proportional to 3,986,987.10, 5,986,385.55 and 3,089,442.30

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Solution

The fourth proportional to 3,986,987.10, 5,986,385.55 and 3,089,442.30 is: 4,638,739.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,987.10 : 5,986,385.55 = 3,089,442.30 : x
  2. Step 2: Convert to fraction form
    3,986,987.10/5,986,385.55 = 3,089,442.30/x
  3. Step 3: Cross multiply
    3,986,987.10x = 5,986,385.55 × 3,089,442.30
  4. Step 4: Simplify right side
    3,986,987.10x = 18,494,592,742,278.76
  5. Step 5: Solve for x
    x = 18,494,592,742,278.76/3,986,987.10
  6. Step 6: Final answer
    x = 4,638,739.05

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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.