Home / 21,160,310.76-29,201,548.80-11,869,940.22

Finding the Fourth Proportional to 21,160,310.76, 29,201,548.80 and 11,869,940.22

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Solution

The fourth proportional to 21,160,310.76, 29,201,548.80 and 11,869,940.22 is: 16,380,696.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160,310.76 : 29,201,548.80 = 11,869,940.22 : x
  2. Step 2: Convert to fraction form
    21,160,310.76/29,201,548.80 = 11,869,940.22/x
  3. Step 3: Cross multiply
    21,160,310.76x = 29,201,548.80 × 11,869,940.22
  4. Step 4: Simplify right side
    21,160,310.76x = 346,620,638,587,412.75
  5. Step 5: Solve for x
    x = 346,620,638,587,412.75/21,160,310.76
  6. Step 6: Final answer
    x = 16,380,696.98

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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.