Home / 21,181,822.68-31,783,464.90-9,666,013.80

Finding the Fourth Proportional to 21,181,822.68, 31,783,464.90 and 9,666,013.80

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Solution

The fourth proportional to 21,181,822.68, 31,783,464.90 and 9,666,013.80 is: 14,503,917.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,181,822.68 : 31,783,464.90 = 9,666,013.80 : x
  2. Step 2: Convert to fraction form
    21,181,822.68/31,783,464.90 = 9,666,013.80/x
  3. Step 3: Cross multiply
    21,181,822.68x = 31,783,464.90 × 9,666,013.80
  4. Step 4: Simplify right side
    21,181,822.68x = 307,219,410,335,215.62
  5. Step 5: Solve for x
    x = 307,219,410,335,215.62/21,181,822.68
  6. Step 6: Final answer
    x = 14,503,917.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.