Home / 3,947,356.77-5,447,668.81-3,138,237.85

Finding the Fourth Proportional to 3,947,356.77, 5,447,668.81 and 3,138,237.85

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Solution

The fourth proportional to 3,947,356.77, 5,447,668.81 and 3,138,237.85 is: 4,331,019.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947,356.77 : 5,447,668.81 = 3,138,237.85 : x
  2. Step 2: Convert to fraction form
    3,947,356.77/5,447,668.81 = 3,138,237.85/x
  3. Step 3: Cross multiply
    3,947,356.77x = 5,447,668.81 × 3,138,237.85
  4. Step 4: Simplify right side
    3,947,356.77x = 17,096,080,459,348.53
  5. Step 5: Solve for x
    x = 17,096,080,459,348.53/3,947,356.77
  6. Step 6: Final answer
    x = 4,331,019.83

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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.