Home / 21,069,588.12-29,078,391.28-11,902,821.36

Finding the Fourth Proportional to 21,069,588.12, 29,078,391.28 and 11,902,821.36

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Solution

The fourth proportional to 21,069,588.12, 29,078,391.28 and 11,902,821.36 is: 16,427,226.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069,588.12 : 29,078,391.28 = 11,902,821.36 : x
  2. Step 2: Convert to fraction form
    21,069,588.12/29,078,391.28 = 11,902,821.36/x
  3. Step 3: Cross multiply
    21,069,588.12x = 29,078,391.28 × 11,902,821.36
  4. Step 4: Simplify right side
    21,069,588.12x = 346,114,896,842,021.75
  5. Step 5: Solve for x
    x = 346,114,896,842,021.75/21,069,588.12
  6. Step 6: Final answer
    x = 16,427,226.53

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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.