Home / 12,885,671.88-19,328,624.45-3,910,223.88

Finding the Fourth Proportional to 12,885,671.88, 19,328,624.45 and 3,910,223.88

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Solution

The fourth proportional to 12,885,671.88, 19,328,624.45 and 3,910,223.88 is: 5,865,371.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,885,671.88 : 19,328,624.45 = 3,910,223.88 : x
  2. Step 2: Convert to fraction form
    12,885,671.88/19,328,624.45 = 3,910,223.88/x
  3. Step 3: Cross multiply
    12,885,671.88x = 19,328,624.45 × 3,910,223.88
  4. Step 4: Simplify right side
    12,885,671.88x = 75,579,248,891,941.86
  5. Step 5: Solve for x
    x = 75,579,248,891,941.86/12,885,671.88
  6. Step 6: Final answer
    x = 5,865,371.21

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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.