Home / 10,202,961.20-15,321,030.60-7,382,865.20

Finding the Fourth Proportional to 10,202,961.20, 15,321,030.60 and 7,382,865.20

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Solution

The fourth proportional to 10,202,961.20, 15,321,030.60 and 7,382,865.20 is: 11,086,301.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,202,961.20 : 15,321,030.60 = 7,382,865.20 : x
  2. Step 2: Convert to fraction form
    10,202,961.20/15,321,030.60 = 7,382,865.20/x
  3. Step 3: Cross multiply
    10,202,961.20x = 15,321,030.60 × 7,382,865.20
  4. Step 4: Simplify right side
    10,202,961.20x = 113,113,103,644,875.12
  5. Step 5: Solve for x
    x = 113,113,103,644,875.12/10,202,961.20
  6. Step 6: Final answer
    x = 11,086,301.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.