Home / 7,171,828.80-9,896,835.05-3,908,573.29

Finding the Fourth Proportional to 7,171,828.80, 9,896,835.05 and 3,908,573.29

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Solution

The fourth proportional to 7,171,828.80, 9,896,835.05 and 3,908,573.29 is: 5,393,673.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171,828.80 : 9,896,835.05 = 3,908,573.29 : x
  2. Step 2: Convert to fraction form
    7,171,828.80/9,896,835.05 = 3,908,573.29/x
  3. Step 3: Cross multiply
    7,171,828.80x = 9,896,835.05 × 3,908,573.29
  4. Step 4: Simplify right side
    7,171,828.80x = 38,682,505,139,451.14
  5. Step 5: Solve for x
    x = 38,682,505,139,451.14/7,171,828.80
  6. Step 6: Final answer
    x = 5,393,673.81

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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.