Home / 21,740,841-30,002,739.66-11,951,697.78

Finding the Fourth Proportional to 21,740,841, 30,002,739.66 and 11,951,697.78

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Solution

The fourth proportional to 21,740,841, 30,002,739.66 and 11,951,697.78 is: 16,493,551.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,740,841 : 30,002,739.66 = 11,951,697.78 : x
  2. Step 2: Convert to fraction form
    21,740,841/30,002,739.66 = 11,951,697.78/x
  3. Step 3: Cross multiply
    21,740,841x = 30,002,739.66 × 11,951,697.78
  4. Step 4: Simplify right side
    21,740,841x = 358,583,676,988,339.94
  5. Step 5: Solve for x
    x = 358,583,676,988,339.94/21,740,841
  6. Step 6: Final answer
    x = 16,493,551.33

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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.