Home / 28,471,622.12-39,290,642.85-15,418,582.33

Finding the Fourth Proportional to 28,471,622.12, 39,290,642.85 and 15,418,582.33

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Solution

The fourth proportional to 28,471,622.12, 39,290,642.85 and 15,418,582.33 is: 21,277,537.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471,622.12 : 39,290,642.85 = 15,418,582.33 : x
  2. Step 2: Convert to fraction form
    28,471,622.12/39,290,642.85 = 15,418,582.33/x
  3. Step 3: Cross multiply
    28,471,622.12x = 39,290,642.85 × 15,418,582.33
  4. Step 4: Simplify right side
    28,471,622.12x = 605,806,011,648,162.62
  5. Step 5: Solve for x
    x = 605,806,011,648,162.62/28,471,622.12
  6. Step 6: Final answer
    x = 21,277,537.65

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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.