Home / 21,172,395.70-29,217,770.70-11,753,085.11

Finding the Fourth Proportional to 21,172,395.70, 29,217,770.70 and 11,753,085.11

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Solution

The fourth proportional to 21,172,395.70, 29,217,770.70 and 11,753,085.11 is: 16,219,182.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,172,395.70 : 29,217,770.70 = 11,753,085.11 : x
  2. Step 2: Convert to fraction form
    21,172,395.70/29,217,770.70 = 11,753,085.11/x
  3. Step 3: Cross multiply
    21,172,395.70x = 29,217,770.70 × 11,753,085.11
  4. Step 4: Simplify right side
    21,172,395.70x = 343,398,945,761,564.25
  5. Step 5: Solve for x
    x = 343,398,945,761,564.25/21,172,395.70
  6. Step 6: Final answer
    x = 16,219,182.31

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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.