Home / 13,286,951.60-18,335,993.16-7,175,379.68

Finding the Fourth Proportional to 13,286,951.60, 18,335,993.16 and 7,175,379.68

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Solution

The fourth proportional to 13,286,951.60, 18,335,993.16 and 7,175,379.68 is: 9,902,023.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,951.60 : 18,335,993.16 = 7,175,379.68 : x
  2. Step 2: Convert to fraction form
    13,286,951.60/18,335,993.16 = 7,175,379.68/x
  3. Step 3: Cross multiply
    13,286,951.60x = 18,335,993.16 × 7,175,379.68
  4. Step 4: Simplify right side
    13,286,951.60x = 131,567,712,732,882.98
  5. Step 5: Solve for x
    x = 131,567,712,732,882.98/13,286,951.60
  6. Step 6: Final answer
    x = 9,902,023.93

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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.