Home / 12,806,721.74-19,211,427.96-4,171,495.07

Finding the Fourth Proportional to 12,806,721.74, 19,211,427.96 and 4,171,495.07

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Solution

The fourth proportional to 12,806,721.74, 19,211,427.96 and 4,171,495.07 is: 6,257,680.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,806,721.74 : 19,211,427.96 = 4,171,495.07 : x
  2. Step 2: Convert to fraction form
    12,806,721.74/19,211,427.96 = 4,171,495.07/x
  3. Step 3: Cross multiply
    12,806,721.74x = 19,211,427.96 × 4,171,495.07
  4. Step 4: Simplify right side
    12,806,721.74x = 80,140,377,055,185.62
  5. Step 5: Solve for x
    x = 80,140,377,055,185.62/12,806,721.74
  6. Step 6: Final answer
    x = 6,257,680.82

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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.