Home / 7,182,765.77-9,912,427.61-3,919,791.10

Finding the Fourth Proportional to 7,182,765.77, 9,912,427.61 and 3,919,791.10

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Solution

The fourth proportional to 7,182,765.77, 9,912,427.61 and 3,919,791.10 is: 5,409,426.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182,765.77 : 9,912,427.61 = 3,919,791.10 : x
  2. Step 2: Convert to fraction form
    7,182,765.77/9,912,427.61 = 3,919,791.10/x
  3. Step 3: Cross multiply
    7,182,765.77x = 9,912,427.61 × 3,919,791.10
  4. Step 4: Simplify right side
    7,182,765.77x = 38,854,645,525,072.27
  5. Step 5: Solve for x
    x = 38,854,645,525,072.27/7,182,765.77
  6. Step 6: Final answer
    x = 5,409,426.78

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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.