Home / 13,286,884.35-18,335,900.30-7,175,312.31

Finding the Fourth Proportional to 13,286,884.35, 18,335,900.30 and 7,175,312.31

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Solution

The fourth proportional to 13,286,884.35, 18,335,900.30 and 7,175,312.31 is: 9,901,930.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,884.35 : 18,335,900.30 = 7,175,312.31 : x
  2. Step 2: Convert to fraction form
    13,286,884.35/18,335,900.30 = 7,175,312.31/x
  3. Step 3: Cross multiply
    13,286,884.35x = 18,335,900.30 × 7,175,312.31
  4. Step 4: Simplify right side
    13,286,884.35x = 131,565,811,101,646.14
  5. Step 5: Solve for x
    x = 131,565,811,101,646.14/13,286,884.35
  6. Step 6: Final answer
    x = 9,901,930.93

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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.