Home / 3,945,341.90-5,448,331.95-3,730,400.21

Finding the Fourth Proportional to 3,945,341.90, 5,448,331.95 and 3,730,400.21

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Solution

The fourth proportional to 3,945,341.90, 5,448,331.95 and 3,730,400.21 is: 5,151,507.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945,341.90 : 5,448,331.95 = 3,730,400.21 : x
  2. Step 2: Convert to fraction form
    3,945,341.90/5,448,331.95 = 3,730,400.21/x
  3. Step 3: Cross multiply
    3,945,341.90x = 5,448,331.95 × 3,730,400.21
  4. Step 4: Simplify right side
    3,945,341.90x = 20,324,458,643,987.46
  5. Step 5: Solve for x
    x = 20,324,458,643,987.46/3,945,341.90
  6. Step 6: Final answer
    x = 5,151,507.56

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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.