Home / 21,694,743.68-29,939,609.43-11,905,538.18

Finding the Fourth Proportional to 21,694,743.68, 29,939,609.43 and 11,905,538.18

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Solution

The fourth proportional to 21,694,743.68, 29,939,609.43 and 11,905,538.18 is: 16,430,116.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,694,743.68 : 29,939,609.43 = 11,905,538.18 : x
  2. Step 2: Convert to fraction form
    21,694,743.68/29,939,609.43 = 11,905,538.18/x
  3. Step 3: Cross multiply
    21,694,743.68x = 29,939,609.43 × 11,905,538.18
  4. Step 4: Simplify right side
    21,694,743.68x = 356,447,163,013,455
  5. Step 5: Solve for x
    x = 356,447,163,013,455/21,694,743.68
  6. Step 6: Final answer
    x = 16,430,116.36

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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.