Home / 215,568,014.40-323,352,021.60-79,235,683.20

Finding the Fourth Proportional to 215,568,014.40, 323,352,021.60 and 79,235,683.20

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Solution

The fourth proportional to 215,568,014.40, 323,352,021.60 and 79,235,683.20 is: 118,853,524.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,568,014.40 : 323,352,021.60 = 79,235,683.20 : x
  2. Step 2: Convert to fraction form
    215,568,014.40/323,352,021.60 = 79,235,683.20/x
  3. Step 3: Cross multiply
    215,568,014.40x = 323,352,021.60 × 79,235,683.20
  4. Step 4: Simplify right side
    215,568,014.40x = 25,621,018,345,577,160
  5. Step 5: Solve for x
    x = 25,621,018,345,577,160/215,568,014.40
  6. Step 6: Final answer
    x = 118,853,524.80

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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.