Home / 20,933,280.90-28,888,268.53-11,514,444.12

Finding the Fourth Proportional to 20,933,280.90, 28,888,268.53 and 11,514,444.12

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Solution

The fourth proportional to 20,933,280.90, 28,888,268.53 and 11,514,444.12 is: 15,890,120.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,933,280.90 : 28,888,268.53 = 11,514,444.12 : x
  2. Step 2: Convert to fraction form
    20,933,280.90/28,888,268.53 = 11,514,444.12/x
  3. Step 3: Cross multiply
    20,933,280.90x = 28,888,268.53 × 11,514,444.12
  4. Step 4: Simplify right side
    20,933,280.90x = 332,632,353,683,453.44
  5. Step 5: Solve for x
    x = 332,632,353,683,453.44/20,933,280.90
  6. Step 6: Final answer
    x = 15,890,120.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.