Home / 13,286,863.35-18,335,871.32-7,175,291.31

Finding the Fourth Proportional to 13,286,863.35, 18,335,871.32 and 7,175,291.31

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Solution

The fourth proportional to 13,286,863.35, 18,335,871.32 and 7,175,291.31 is: 9,901,901.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,863.35 : 18,335,871.32 = 7,175,291.31 : x
  2. Step 2: Convert to fraction form
    13,286,863.35/18,335,871.32 = 7,175,291.31/x
  3. Step 3: Cross multiply
    13,286,863.35x = 18,335,871.32 × 7,175,291.31
  4. Step 4: Simplify right side
    13,286,863.35x = 131,565,218,107,797.78
  5. Step 5: Solve for x
    x = 131,565,218,107,797.78/13,286,863.35
  6. Step 6: Final answer
    x = 9,901,901.95

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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.