Home / 12,618,371.41-18,919,990.28-5,786,385.95

Finding the Fourth Proportional to 12,618,371.41, 18,919,990.28 and 5,786,385.95

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Solution

The fourth proportional to 12,618,371.41, 18,919,990.28 and 5,786,385.95 is: 8,676,109.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618,371.41 : 18,919,990.28 = 5,786,385.95 : x
  2. Step 2: Convert to fraction form
    12,618,371.41/18,919,990.28 = 5,786,385.95/x
  3. Step 3: Cross multiply
    12,618,371.41x = 18,919,990.28 × 5,786,385.95
  4. Step 4: Simplify right side
    12,618,371.41x = 109,478,365,930,328.58
  5. Step 5: Solve for x
    x = 109,478,365,930,328.58/12,618,371.41
  6. Step 6: Final answer
    x = 8,676,109.01

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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.