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Finding the Fourth Proportional to 414,657,792.08, 621,988,391.44 and 103,764,561

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Solution

The fourth proportional to 414,657,792.08, 621,988,391.44 and 103,764,561 is: 155,647,267.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,657,792.08 : 621,988,391.44 = 103,764,561 : x
  2. Step 2: Convert to fraction form
    414,657,792.08/621,988,391.44 = 103,764,561/x
  3. Step 3: Cross multiply
    414,657,792.08x = 621,988,391.44 × 103,764,561
  4. Step 4: Simplify right side
    414,657,792.08x = 64,540,352,384,867,760
  5. Step 5: Solve for x
    x = 64,540,352,384,867,760/414,657,792.08
  6. Step 6: Final answer
    x = 155,647,267.74

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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.