Home / 12,183,174.72-16,820,425.71-7,839,808.92

Finding the Fourth Proportional to 12,183,174.72, 16,820,425.71 and 7,839,808.92

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Solution

The fourth proportional to 12,183,174.72, 16,820,425.71 and 7,839,808.92 is: 10,823,855.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183,174.72 : 16,820,425.71 = 7,839,808.92 : x
  2. Step 2: Convert to fraction form
    12,183,174.72/16,820,425.71 = 7,839,808.92/x
  3. Step 3: Cross multiply
    12,183,174.72x = 16,820,425.71 × 7,839,808.92
  4. Step 4: Simplify right side
    12,183,174.72x = 131,868,923,519,455.34
  5. Step 5: Solve for x
    x = 131,868,923,519,455.34/12,183,174.72
  6. Step 6: Final answer
    x = 10,823,855.57

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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.