Home / 20,829,216.47-28,743,997.70-11,662,187.27

Finding the Fourth Proportional to 20,829,216.47, 28,743,997.70 and 11,662,187.27

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Solution

The fourth proportional to 20,829,216.47, 28,743,997.70 and 11,662,187.27 is: 16,093,638.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829,216.47 : 28,743,997.70 = 11,662,187.27 : x
  2. Step 2: Convert to fraction form
    20,829,216.47/28,743,997.70 = 11,662,187.27/x
  3. Step 3: Cross multiply
    20,829,216.47x = 28,743,997.70 × 11,662,187.27
  4. Step 4: Simplify right side
    20,829,216.47x = 335,217,883,863,818.38
  5. Step 5: Solve for x
    x = 335,217,883,863,818.38/20,829,216.47
  6. Step 6: Final answer
    x = 16,093,638.68

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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.