Home / 20,804,622.86-28,712,540.60-11,984,378.96

Finding the Fourth Proportional to 20,804,622.86, 28,712,540.60 and 11,984,378.96

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Solution

The fourth proportional to 20,804,622.86, 28,712,540.60 and 11,984,378.96 is: 16,539,687.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804,622.86 : 28,712,540.60 = 11,984,378.96 : x
  2. Step 2: Convert to fraction form
    20,804,622.86/28,712,540.60 = 11,984,378.96/x
  3. Step 3: Cross multiply
    20,804,622.86x = 28,712,540.60 × 11,984,378.96
  4. Step 4: Simplify right side
    20,804,622.86x = 344,101,967,251,301.19
  5. Step 5: Solve for x
    x = 344,101,967,251,301.19/20,804,622.86
  6. Step 6: Final answer
    x = 16,539,687.82

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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.