Home / 3,639,041.28-5,447,989.44-2,118,081.60

Finding the Fourth Proportional to 3,639,041.28, 5,447,989.44 and 2,118,081.60

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Solution

The fourth proportional to 3,639,041.28, 5,447,989.44 and 2,118,081.60 is: 3,170,968.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639,041.28 : 5,447,989.44 = 2,118,081.60 : x
  2. Step 2: Convert to fraction form
    3,639,041.28/5,447,989.44 = 2,118,081.60/x
  3. Step 3: Cross multiply
    3,639,041.28x = 5,447,989.44 × 2,118,081.60
  4. Step 4: Simplify right side
    3,639,041.28x = 11,539,286,189,858.30
  5. Step 5: Solve for x
    x = 11,539,286,189,858.30/3,639,041.28
  6. Step 6: Final answer
    x = 3,170,968.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.