Home / 28,431,397.80-42,647,096.70-28,147,962.60

Finding the Fourth Proportional to 28,431,397.80, 42,647,096.70 and 28,147,962.60

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Solution

The fourth proportional to 28,431,397.80, 42,647,096.70 and 28,147,962.60 is: 42,221,943.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,431,397.80 : 42,647,096.70 = 28,147,962.60 : x
  2. Step 2: Convert to fraction form
    28,431,397.80/42,647,096.70 = 28,147,962.60/x
  3. Step 3: Cross multiply
    28,431,397.80x = 42,647,096.70 × 28,147,962.60
  4. Step 4: Simplify right side
    28,431,397.80x = 1,200,428,882,910,183.50
  5. Step 5: Solve for x
    x = 1,200,428,882,910,183.50/28,431,397.80
  6. Step 6: Final answer
    x = 42,221,943.90

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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.