Home / 38,692,482.54-53,394,524.80-21,288,839.55

Finding the Fourth Proportional to 38,692,482.54, 53,394,524.80 and 21,288,839.55

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Solution

The fourth proportional to 38,692,482.54, 53,394,524.80 and 21,288,839.55 is: 29,377,992.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,692,482.54 : 53,394,524.80 = 21,288,839.55 : x
  2. Step 2: Convert to fraction form
    38,692,482.54/53,394,524.80 = 21,288,839.55/x
  3. Step 3: Cross multiply
    38,692,482.54x = 53,394,524.80 × 21,288,839.55
  4. Step 4: Simplify right side
    38,692,482.54x = 1,136,707,471,315,695.75
  5. Step 5: Solve for x
    x = 1,136,707,471,315,695.75/38,692,482.54
  6. Step 6: Final answer
    x = 29,377,992.74

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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.