Home / 13,728,387.40-18,945,122.82-7,533,538

Finding the Fourth Proportional to 13,728,387.40, 18,945,122.82 and 7,533,538

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Solution

The fourth proportional to 13,728,387.40, 18,945,122.82 and 7,533,538 is: 10,396,254.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728,387.40 : 18,945,122.82 = 7,533,538 : x
  2. Step 2: Convert to fraction form
    13,728,387.40/18,945,122.82 = 7,533,538/x
  3. Step 3: Cross multiply
    13,728,387.40x = 18,945,122.82 × 7,533,538
  4. Step 4: Simplify right side
    13,728,387.40x = 142,723,802,679,137.16
  5. Step 5: Solve for x
    x = 142,723,802,679,137.16/13,728,387.40
  6. Step 6: Final answer
    x = 10,396,254.02

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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.