Home / 3,986,987.60-5,986,386.30-3,089,442.80

Finding the Fourth Proportional to 3,986,987.60, 5,986,386.30 and 3,089,442.80

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Solution

The fourth proportional to 3,986,987.60, 5,986,386.30 and 3,089,442.80 is: 4,638,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,987.60 : 5,986,386.30 = 3,089,442.80 : x
  2. Step 2: Convert to fraction form
    3,986,987.60/5,986,386.30 = 3,089,442.80/x
  3. Step 3: Cross multiply
    3,986,987.60x = 5,986,386.30 × 3,089,442.80
  4. Step 4: Simplify right side
    3,986,987.60x = 18,494,598,052,553.64
  5. Step 5: Solve for x
    x = 18,494,598,052,553.64/3,986,987.60
  6. Step 6: Final answer
    x = 4,638,739.80

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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.