Home / 7,143,402.12-9,858,078.30-3,880,403.59

Finding the Fourth Proportional to 7,143,402.12, 9,858,078.30 and 3,880,403.59

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Solution

The fourth proportional to 7,143,402.12, 9,858,078.30 and 3,880,403.59 is: 5,355,056.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143,402.12 : 9,858,078.30 = 3,880,403.59 : x
  2. Step 2: Convert to fraction form
    7,143,402.12/9,858,078.30 = 3,880,403.59/x
  3. Step 3: Cross multiply
    7,143,402.12x = 9,858,078.30 × 3,880,403.59
  4. Step 4: Simplify right side
    7,143,402.12x = 38,253,322,429,196.25
  5. Step 5: Solve for x
    x = 38,253,322,429,196.25/7,143,402.12
  6. Step 6: Final answer
    x = 5,355,056.56

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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.