Home / 12,895,538.84-19,342,608.36-3,919,391

Finding the Fourth Proportional to 12,895,538.84, 19,342,608.36 and 3,919,391

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Solution

The fourth proportional to 12,895,538.84, 19,342,608.36 and 3,919,391 is: 5,878,873.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,895,538.84 : 19,342,608.36 = 3,919,391 : x
  2. Step 2: Convert to fraction form
    12,895,538.84/19,342,608.36 = 3,919,391/x
  3. Step 3: Cross multiply
    12,895,538.84x = 19,342,608.36 × 3,919,391
  4. Step 4: Simplify right side
    12,895,538.84x = 75,811,245,122,708.75
  5. Step 5: Solve for x
    x = 75,811,245,122,708.75/12,895,538.84
  6. Step 6: Final answer
    x = 5,878,873.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.