Home / 21,069,578.10-29,078,377.47-11,902,811.34

Finding the Fourth Proportional to 21,069,578.10, 29,078,377.47 and 11,902,811.34

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Solution

The fourth proportional to 21,069,578.10, 29,078,377.47 and 11,902,811.34 is: 16,427,212.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069,578.10 : 29,078,377.47 = 11,902,811.34 : x
  2. Step 2: Convert to fraction form
    21,069,578.10/29,078,377.47 = 11,902,811.34/x
  3. Step 3: Cross multiply
    21,069,578.10x = 29,078,377.47 × 11,902,811.34
  4. Step 4: Simplify right side
    21,069,578.10x = 346,114,441,098,716.50
  5. Step 5: Solve for x
    x = 346,114,441,098,716.50/21,069,578.10
  6. Step 6: Final answer
    x = 16,427,212.71

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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.