Home / 20,829,216.48-28,743,997.68-11,662,187.28

Finding the Fourth Proportional to 20,829,216.48, 28,743,997.68 and 11,662,187.28

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Solution

The fourth proportional to 20,829,216.48, 28,743,997.68 and 11,662,187.28 is: 16,093,638.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829,216.48 : 28,743,997.68 = 11,662,187.28 : x
  2. Step 2: Convert to fraction form
    20,829,216.48/28,743,997.68 = 11,662,187.28/x
  3. Step 3: Cross multiply
    20,829,216.48x = 28,743,997.68 × 11,662,187.28
  4. Step 4: Simplify right side
    20,829,216.48x = 335,217,884,120,045.50
  5. Step 5: Solve for x
    x = 335,217,884,120,045.50/20,829,216.48
  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.