Home / 20,348,435.38-28,080,834.36-11,181,668.62

Finding the Fourth Proportional to 20,348,435.38, 28,080,834.36 and 11,181,668.62

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Solution

The fourth proportional to 20,348,435.38, 28,080,834.36 and 11,181,668.62 is: 15,430,699.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348,435.38 : 28,080,834.36 = 11,181,668.62 : x
  2. Step 2: Convert to fraction form
    20,348,435.38/28,080,834.36 = 11,181,668.62/x
  3. Step 3: Cross multiply
    20,348,435.38x = 28,080,834.36 × 11,181,668.62
  4. Step 4: Simplify right side
    20,348,435.38x = 313,990,584,386,629.75
  5. Step 5: Solve for x
    x = 313,990,584,386,629.75/20,348,435.38
  6. Step 6: Final answer
    x = 15,430,699.14

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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.