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Finding the Fourth Proportional to 28,398,469.70, 42,597,704.55 and 23,359,621.70

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Solution

The fourth proportional to 28,398,469.70, 42,597,704.55 and 23,359,621.70 is: 35,039,432.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,398,469.70 : 42,597,704.55 = 23,359,621.70 : x
  2. Step 2: Convert to fraction form
    28,398,469.70/42,597,704.55 = 23,359,621.70/x
  3. Step 3: Cross multiply
    28,398,469.70x = 42,597,704.55 × 23,359,621.70
  4. Step 4: Simplify right side
    28,398,469.70x = 995,066,263,576,368.62
  5. Step 5: Solve for x
    x = 995,066,263,576,368.62/28,398,469.70
  6. Step 6: Final answer
    x = 35,039,432.55

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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.