Home / 21,010,991.10-28,995,611.34-11,843,631.42

Finding the Fourth Proportional to 21,010,991.10, 28,995,611.34 and 11,843,631.42

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Solution

The fourth proportional to 21,010,991.10, 28,995,611.34 and 11,843,631.42 is: 16,344,461.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010,991.10 : 28,995,611.34 = 11,843,631.42 : x
  2. Step 2: Convert to fraction form
    21,010,991.10/28,995,611.34 = 11,843,631.42/x
  3. Step 3: Cross multiply
    21,010,991.10x = 28,995,611.34 × 11,843,631.42
  4. Step 4: Simplify right side
    21,010,991.10x = 343,413,333,508,532.31
  5. Step 5: Solve for x
    x = 343,413,333,508,532.31/21,010,991.10
  6. Step 6: Final answer
    x = 16,344,461.42

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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.