Home / 13,286,892.72-18,335,911.68-7,175,320.56

Finding the Fourth Proportional to 13,286,892.72, 18,335,911.68 and 7,175,320.56

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Solution

The fourth proportional to 13,286,892.72, 18,335,911.68 and 7,175,320.56 is: 9,901,942.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,892.72 : 18,335,911.68 = 7,175,320.56 : x
  2. Step 2: Convert to fraction form
    13,286,892.72/18,335,911.68 = 7,175,320.56/x
  3. Step 3: Cross multiply
    13,286,892.72x = 18,335,911.68 × 7,175,320.56
  4. Step 4: Simplify right side
    13,286,892.72x = 131,566,044,063,848.12
  5. Step 5: Solve for x
    x = 131,566,044,063,848.12/13,286,892.72
  6. Step 6: Final answer
    x = 9,901,942.23

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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.