Home / 39,302,868.42-54,235,745.12-21,661,717.52

Finding the Fourth Proportional to 39,302,868.42, 54,235,745.12 and 21,661,717.52

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Solution

The fourth proportional to 39,302,868.42, 54,235,745.12 and 21,661,717.52 is: 29,891,950.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,302,868.42 : 54,235,745.12 = 21,661,717.52 : x
  2. Step 2: Convert to fraction form
    39,302,868.42/54,235,745.12 = 21,661,717.52/x
  3. Step 3: Cross multiply
    39,302,868.42x = 54,235,745.12 × 21,661,717.52
  4. Step 4: Simplify right side
    39,302,868.42x = 1,174,839,389,896,671.25
  5. Step 5: Solve for x
    x = 1,174,839,389,896,671.25/39,302,868.42
  6. Step 6: Final answer
    x = 29,891,950.31

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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.