Home / 28,471,909.86-39,291,027.51-15,418,865.97

Finding the Fourth Proportional to 28,471,909.86, 39,291,027.51 and 15,418,865.97

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Solution

The fourth proportional to 28,471,909.86, 39,291,027.51 and 15,418,865.97 is: 21,277,922.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471,909.86 : 39,291,027.51 = 15,418,865.97 : x
  2. Step 2: Convert to fraction form
    28,471,909.86/39,291,027.51 = 15,418,865.97/x
  3. Step 3: Cross multiply
    28,471,909.86x = 39,291,027.51 × 15,418,865.97
  4. Step 4: Simplify right side
    28,471,909.86x = 605,823,087,058,093.62
  5. Step 5: Solve for x
    x = 605,823,087,058,093.62/28,471,909.86
  6. Step 6: Final answer
    x = 21,277,922.35

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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.