Home / 7,171,169.72-9,896,216.28-3,907,985.36

Finding the Fourth Proportional to 7,171,169.72, 9,896,216.28 and 3,907,985.36

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Solution

The fourth proportional to 7,171,169.72, 9,896,216.28 and 3,907,985.36 is: 5,393,020.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171,169.72 : 9,896,216.28 = 3,907,985.36 : x
  2. Step 2: Convert to fraction form
    7,171,169.72/9,896,216.28 = 3,907,985.36/x
  3. Step 3: Cross multiply
    7,171,169.72x = 9,896,216.28 × 3,907,985.36
  4. Step 4: Simplify right side
    7,171,169.72x = 38,674,268,341,633.66
  5. Step 5: Solve for x
    x = 38,674,268,341,633.66/7,171,169.72
  6. Step 6: Final answer
    x = 5,393,020.92

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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.