Home / 43,485,375.60-65,235,936.60-21,865,568.40

Finding the Fourth Proportional to 43,485,375.60, 65,235,936.60 and 21,865,568.40

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Solution

The fourth proportional to 43,485,375.60, 65,235,936.60 and 21,865,568.40 is: 32,802,311.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,485,375.60 : 65,235,936.60 = 21,865,568.40 : x
  2. Step 2: Convert to fraction form
    43,485,375.60/65,235,936.60 = 21,865,568.40/x
  3. Step 3: Cross multiply
    43,485,375.60x = 65,235,936.60 × 21,865,568.40
  4. Step 4: Simplify right side
    43,485,375.60x = 1,426,420,833,865,363.50
  5. Step 5: Solve for x
    x = 1,426,420,833,865,363.50/43,485,375.60
  6. Step 6: Final answer
    x = 32,802,311.45

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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.