Home / 6,620,123.70-9,135,778.77-3,719,512.89

Finding the Fourth Proportional to 6,620,123.70, 9,135,778.77 and 3,719,512.89

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Solution

The fourth proportional to 6,620,123.70, 9,135,778.77 and 3,719,512.89 is: 5,132,932.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620,123.70 : 9,135,778.77 = 3,719,512.89 : x
  2. Step 2: Convert to fraction form
    6,620,123.70/9,135,778.77 = 3,719,512.89/x
  3. Step 3: Cross multiply
    6,620,123.70x = 9,135,778.77 × 3,719,512.89
  4. Step 4: Simplify right side
    6,620,123.70x = 33,980,646,895,203.34
  5. Step 5: Solve for x
    x = 33,980,646,895,203.34/6,620,123.70
  6. Step 6: Final answer
    x = 5,132,932.32

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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.