Home / 13,286,815.60-18,335,805.42-7,175,243.56

Finding the Fourth Proportional to 13,286,815.60, 18,335,805.42 and 7,175,243.56

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Solution

The fourth proportional to 13,286,815.60, 18,335,805.42 and 7,175,243.56 is: 9,901,836.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,815.60 : 18,335,805.42 = 7,175,243.56 : x
  2. Step 2: Convert to fraction form
    13,286,815.60/18,335,805.42 = 7,175,243.56/x
  3. Step 3: Cross multiply
    13,286,815.60x = 18,335,805.42 × 7,175,243.56
  4. Step 4: Simplify right side
    13,286,815.60x = 131,563,869,757,268.09
  5. Step 5: Solve for x
    x = 131,563,869,757,268.09/13,286,815.60
  6. Step 6: Final answer
    x = 9,901,836.05

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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.