Home / 12,618,370.41-18,919,988.78-5,786,384.95

Finding the Fourth Proportional to 12,618,370.41, 18,919,988.78 and 5,786,384.95

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Solution

The fourth proportional to 12,618,370.41, 18,919,988.78 and 5,786,384.95 is: 8,676,107.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618,370.41 : 18,919,988.78 = 5,786,384.95 : x
  2. Step 2: Convert to fraction form
    12,618,370.41/18,919,988.78 = 5,786,384.95/x
  3. Step 3: Cross multiply
    12,618,370.41x = 18,919,988.78 × 5,786,384.95
  4. Step 4: Simplify right side
    12,618,370.41x = 109,478,338,236,160.92
  5. Step 5: Solve for x
    x = 109,478,338,236,160.92/12,618,370.41
  6. Step 6: Final answer
    x = 8,676,107.51

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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.