Home / 20,999,074.72-31,501,238.64-8,217,928.48

Finding the Fourth Proportional to 20,999,074.72, 31,501,238.64 and 8,217,928.48

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Solution

The fourth proportional to 20,999,074.72, 31,501,238.64 and 8,217,928.48 is: 12,327,920.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,999,074.72 : 31,501,238.64 = 8,217,928.48 : x
  2. Step 2: Convert to fraction form
    20,999,074.72/31,501,238.64 = 8,217,928.48/x
  3. Step 3: Cross multiply
    20,999,074.72x = 31,501,238.64 × 8,217,928.48
  4. Step 4: Simplify right side
    20,999,074.72x = 258,874,926,174,932.50
  5. Step 5: Solve for x
    x = 258,874,926,174,932.50/20,999,074.72
  6. Step 6: Final answer
    x = 12,327,920.62

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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.