Home / 13,031,047.28-17,982,847.47-7,229,815.18

Finding the Fourth Proportional to 13,031,047.28, 17,982,847.47 and 7,229,815.18

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Solution

The fourth proportional to 13,031,047.28, 17,982,847.47 and 7,229,815.18 is: 9,977,146.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,031,047.28 : 17,982,847.47 = 7,229,815.18 : x
  2. Step 2: Convert to fraction form
    13,031,047.28/17,982,847.47 = 7,229,815.18/x
  3. Step 3: Cross multiply
    13,031,047.28x = 17,982,847.47 × 7,229,815.18
  4. Step 4: Simplify right side
    13,031,047.28x = 130,012,663,573,273.47
  5. Step 5: Solve for x
    x = 130,012,663,573,273.47/13,031,047.28
  6. Step 6: Final answer
    x = 9,977,146.18

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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.