Home / 12,993,894.78-17,931,357.13-7,192,551.66

Finding the Fourth Proportional to 12,993,894.78, 17,931,357.13 and 7,192,551.66

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Solution

The fourth proportional to 12,993,894.78, 17,931,357.13 and 7,192,551.66 is: 9,925,600.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,993,894.78 : 17,931,357.13 = 7,192,551.66 : x
  2. Step 2: Convert to fraction form
    12,993,894.78/17,931,357.13 = 7,192,551.66/x
  3. Step 3: Cross multiply
    12,993,894.78x = 17,931,357.13 × 7,192,551.66
  4. Step 4: Simplify right side
    12,993,894.78x = 128,972,212,491,434.33
  5. Step 5: Solve for x
    x = 128,972,212,491,434.33/12,993,894.78
  6. Step 6: Final answer
    x = 9,925,600.81

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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.