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Finding the Fourth Proportional to 52,489,969.80, 78,734,954.70 and 45,183,640.20

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Solution

The fourth proportional to 52,489,969.80, 78,734,954.70 and 45,183,640.20 is: 67,775,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,489,969.80 : 78,734,954.70 = 45,183,640.20 : x
  2. Step 2: Convert to fraction form
    52,489,969.80/78,734,954.70 = 45,183,640.20/x
  3. Step 3: Cross multiply
    52,489,969.80x = 78,734,954.70 × 45,183,640.20
  4. Step 4: Simplify right side
    52,489,969.80x = 3,557,531,864,328,099.50
  5. Step 5: Solve for x
    x = 3,557,531,864,328,099.50/52,489,969.80
  6. Step 6: Final answer
    x = 67,775,460.30

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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.