Home / 39,975,901.06-55,166,761.92-21,641,186.56

Finding the Fourth Proportional to 39,975,901.06, 55,166,761.92 and 21,641,186.56

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Solution

The fourth proportional to 39,975,901.06, 55,166,761.92 and 21,641,186.56 is: 29,864,847.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,975,901.06 : 55,166,761.92 = 21,641,186.56 : x
  2. Step 2: Convert to fraction form
    39,975,901.06/55,166,761.92 = 21,641,186.56/x
  3. Step 3: Cross multiply
    39,975,901.06x = 55,166,761.92 × 21,641,186.56
  4. Step 4: Simplify right side
    39,975,901.06x = 1,193,874,186,621,823.75
  5. Step 5: Solve for x
    x = 1,193,874,186,621,823.75/39,975,901.06
  6. Step 6: Final answer
    x = 29,864,847.44

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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.