Home / 20,370,525.57-28,111,857.17-11,203,408.89

Finding the Fourth Proportional to 20,370,525.57, 28,111,857.17 and 11,203,408.89

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Solution

The fourth proportional to 20,370,525.57, 28,111,857.17 and 11,203,408.89 is: 15,460,996.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370,525.57 : 28,111,857.17 = 11,203,408.89 : x
  2. Step 2: Convert to fraction form
    20,370,525.57/28,111,857.17 = 11,203,408.89/x
  3. Step 3: Cross multiply
    20,370,525.57x = 28,111,857.17 × 11,203,408.89
  4. Step 4: Simplify right side
    20,370,525.57x = 314,948,630,476,771.19
  5. Step 5: Solve for x
    x = 314,948,630,476,771.19/20,370,525.57
  6. Step 6: Final answer
    x = 15,460,996.79

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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.