Home / 20,348,018.60-30,522,027.90-13,891,010.45

Finding the Fourth Proportional to 20,348,018.60, 30,522,027.90 and 13,891,010.45

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Solution

The fourth proportional to 20,348,018.60, 30,522,027.90 and 13,891,010.45 is: 20,836,515.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348,018.60 : 30,522,027.90 = 13,891,010.45 : x
  2. Step 2: Convert to fraction form
    20,348,018.60/30,522,027.90 = 13,891,010.45/x
  3. Step 3: Cross multiply
    20,348,018.60x = 30,522,027.90 × 13,891,010.45
  4. Step 4: Simplify right side
    20,348,018.60x = 423,981,808,514,091.50
  5. Step 5: Solve for x
    x = 423,981,808,514,091.50/20,348,018.60
  6. Step 6: Final answer
    x = 20,836,515.68

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Double scale
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Similar ratio
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1.5x scale

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.