Home / 12,891,172.92-19,332,657.78-4,253,663.37

Finding the Fourth Proportional to 12,891,172.92, 19,332,657.78 and 4,253,663.37

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Solution

The fourth proportional to 12,891,172.92, 19,332,657.78 and 4,253,663.37 is: 6,379,141.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,891,172.92 : 19,332,657.78 = 4,253,663.37 : x
  2. Step 2: Convert to fraction form
    12,891,172.92/19,332,657.78 = 4,253,663.37/x
  3. Step 3: Cross multiply
    12,891,172.92x = 19,332,657.78 × 4,253,663.37
  4. Step 4: Simplify right side
    12,891,172.92x = 82,234,618,243,531.53
  5. Step 5: Solve for x
    x = 82,234,618,243,531.53/12,891,172.92
  6. Step 6: Final answer
    x = 6,379,141.66

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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.