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Finding the Fourth Proportional to 262,656,665.70, 393,984,998.55 and 80,880,224.10

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Solution

The fourth proportional to 262,656,665.70, 393,984,998.55 and 80,880,224.10 is: 121,320,336.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,656,665.70 : 393,984,998.55 = 80,880,224.10 : x
  2. Step 2: Convert to fraction form
    262,656,665.70/393,984,998.55 = 80,880,224.10/x
  3. Step 3: Cross multiply
    262,656,665.70x = 393,984,998.55 × 80,880,224.10
  4. Step 4: Simplify right side
    262,656,665.70x = 31,865,594,974,762,172
  5. Step 5: Solve for x
    x = 31,865,594,974,762,172/262,656,665.70
  6. Step 6: Final answer
    x = 121,320,336.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.