Home / 20,440,130.66-28,207,408.30-11,147,723.18

Finding the Fourth Proportional to 20,440,130.66, 28,207,408.30 and 11,147,723.18

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Solution

The fourth proportional to 20,440,130.66, 28,207,408.30 and 11,147,723.18 is: 15,383,873.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440,130.66 : 28,207,408.30 = 11,147,723.18 : x
  2. Step 2: Convert to fraction form
    20,440,130.66/28,207,408.30 = 11,147,723.18/x
  3. Step 3: Cross multiply
    20,440,130.66x = 28,207,408.30 × 11,147,723.18
  4. Step 4: Simplify right side
    20,440,130.66x = 314,448,379,353,634.38
  5. Step 5: Solve for x
    x = 314,448,379,353,634.38/20,440,130.66
  6. Step 6: Final answer
    x = 15,383,873.25

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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.