Home / 7,210,977.68-9,951,151.42-3,947,999.64

Finding the Fourth Proportional to 7,210,977.68, 9,951,151.42 and 3,947,999.64

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Solution

The fourth proportional to 7,210,977.68, 9,951,151.42 and 3,947,999.64 is: 5,448,240.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210,977.68 : 9,951,151.42 = 3,947,999.64 : x
  2. Step 2: Convert to fraction form
    7,210,977.68/9,951,151.42 = 3,947,999.64/x
  3. Step 3: Cross multiply
    7,210,977.68x = 9,951,151.42 × 3,947,999.64
  4. Step 4: Simplify right side
    7,210,977.68x = 39,287,142,223,745.49
  5. Step 5: Solve for x
    x = 39,287,142,223,745.49/7,210,977.68
  6. Step 6: Final answer
    x = 5,448,240.72

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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.