Home / 21,519,616-29,696,626.80-11,729,975.44

Finding the Fourth Proportional to 21,519,616, 29,696,626.80 and 11,729,975.44

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Solution

The fourth proportional to 21,519,616, 29,696,626.80 and 11,729,975.44 is: 16,187,124.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,519,616 : 29,696,626.80 = 11,729,975.44 : x
  2. Step 2: Convert to fraction form
    21,519,616/29,696,626.80 = 11,729,975.44/x
  3. Step 3: Cross multiply
    21,519,616x = 29,696,626.80 × 11,729,975.44
  4. Step 4: Simplify right side
    21,519,616x = 348,340,703,014,845.81
  5. Step 5: Solve for x
    x = 348,340,703,014,845.81/21,519,616
  6. Step 6: Final answer
    x = 16,187,124.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.