Home / 7,171,240.75-9,896,023.70-3,907,985.41

Finding the Fourth Proportional to 7,171,240.75, 9,896,023.70 and 3,907,985.41

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Solution

The fourth proportional to 7,171,240.75, 9,896,023.70 and 3,907,985.41 is: 5,392,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171,240.75 : 9,896,023.70 = 3,907,985.41 : x
  2. Step 2: Convert to fraction form
    7,171,240.75/9,896,023.70 = 3,907,985.41/x
  3. Step 3: Cross multiply
    7,171,240.75x = 9,896,023.70 × 3,907,985.41
  4. Step 4: Simplify right side
    7,171,240.75x = 38,673,516,268,189.05
  5. Step 5: Solve for x
    x = 38,673,516,268,189.05/7,171,240.75
  6. Step 6: Final answer
    x = 5,392,862.64

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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.