Home / 13,286,710.56-18,335,660.67-7,175,139.06

Finding the Fourth Proportional to 13,286,710.56, 18,335,660.67 and 7,175,139.06

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Solution

The fourth proportional to 13,286,710.56, 18,335,660.67 and 7,175,139.06 is: 9,901,691.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,710.56 : 18,335,660.67 = 7,175,139.06 : x
  2. Step 2: Convert to fraction form
    13,286,710.56/18,335,660.67 = 7,175,139.06/x
  3. Step 3: Cross multiply
    13,286,710.56x = 18,335,660.67 × 7,175,139.06
  4. Step 4: Simplify right side
    13,286,710.56x = 131,560,915,064,222.78
  5. Step 5: Solve for x
    x = 131,560,915,064,222.78/13,286,710.56
  6. Step 6: Final answer
    x = 9,901,691.96

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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.