Home / 8,145,257.81-12,217,898.05-3,470,129.78

Finding the Fourth Proportional to 8,145,257.81, 12,217,898.05 and 3,470,129.78

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Solution

The fourth proportional to 8,145,257.81, 12,217,898.05 and 3,470,129.78 is: 5,205,199.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145,257.81 : 12,217,898.05 = 3,470,129.78 : x
  2. Step 2: Convert to fraction form
    8,145,257.81/12,217,898.05 = 3,470,129.78/x
  3. Step 3: Cross multiply
    8,145,257.81x = 12,217,898.05 × 3,470,129.78
  4. Step 4: Simplify right side
    8,145,257.81x = 42,397,691,802,544.11
  5. Step 5: Solve for x
    x = 42,397,691,802,544.11/8,145,257.81
  6. Step 6: Final answer
    x = 5,205,199.49

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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.