Home / 20,409,765.40-28,165,477.78-11,242,408.14

Finding the Fourth Proportional to 20,409,765.40, 28,165,477.78 and 11,242,408.14

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Solution

The fourth proportional to 20,409,765.40, 28,165,477.78 and 11,242,408.14 is: 15,514,524.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409,765.40 : 28,165,477.78 = 11,242,408.14 : x
  2. Step 2: Convert to fraction form
    20,409,765.40/28,165,477.78 = 11,242,408.14/x
  3. Step 3: Cross multiply
    20,409,765.40x = 28,165,477.78 × 11,242,408.14
  4. Step 4: Simplify right side
    20,409,765.40x = 316,647,796,660,861.19
  5. Step 5: Solve for x
    x = 316,647,796,660,861.19/20,409,765.40
  6. Step 6: Final answer
    x = 15,514,524.07

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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.