Home / 12,895,518.84-19,342,578.36-3,919,371

Finding the Fourth Proportional to 12,895,518.84, 19,342,578.36 and 3,919,371

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Solution

The fourth proportional to 12,895,518.84, 19,342,578.36 and 3,919,371 is: 5,878,843.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,895,518.84 : 19,342,578.36 = 3,919,371 : x
  2. Step 2: Convert to fraction form
    12,895,518.84/19,342,578.36 = 3,919,371/x
  3. Step 3: Cross multiply
    12,895,518.84x = 19,342,578.36 × 3,919,371
  4. Step 4: Simplify right side
    12,895,518.84x = 75,810,740,689,411.56
  5. Step 5: Solve for x
    x = 75,810,740,689,411.56/12,895,518.84
  6. Step 6: Final answer
    x = 5,878,843.78

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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.