Home / 28,479,739.82-39,302,229.65-15,426,998.73

Finding the Fourth Proportional to 28,479,739.82, 39,302,229.65 and 15,426,998.73

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Solution

The fourth proportional to 28,479,739.82, 39,302,229.65 and 15,426,998.73 is: 21,289,360.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479,739.82 : 39,302,229.65 = 15,426,998.73 : x
  2. Step 2: Convert to fraction form
    28,479,739.82/39,302,229.65 = 15,426,998.73/x
  3. Step 3: Cross multiply
    28,479,739.82x = 39,302,229.65 × 15,426,998.73
  4. Step 4: Simplify right side
    28,479,739.82x = 606,315,446,896,718.38
  5. Step 5: Solve for x
    x = 606,315,446,896,718.38/28,479,739.82
  6. Step 6: Final answer
    x = 21,289,360.46

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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.