Home / 214,016,972.80-321,025,459.20-70,414,489.60

Finding the Fourth Proportional to 214,016,972.80, 321,025,459.20 and 70,414,489.60

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Solution

The fourth proportional to 214,016,972.80, 321,025,459.20 and 70,414,489.60 is: 105,621,734.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,016,972.80 : 321,025,459.20 = 70,414,489.60 : x
  2. Step 2: Convert to fraction form
    214,016,972.80/321,025,459.20 = 70,414,489.60/x
  3. Step 3: Cross multiply
    214,016,972.80x = 321,025,459.20 × 70,414,489.60
  4. Step 4: Simplify right side
    214,016,972.80x = 22,604,843,858,173,620
  5. Step 5: Solve for x
    x = 22,604,843,858,173,620/214,016,972.80
  6. Step 6: Final answer
    x = 105,621,734.40

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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.