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Finding the Fourth Proportional to 274,889,167.40, 412,324,247.10 and 70,419,247.40

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Solution

The fourth proportional to 274,889,167.40, 412,324,247.10 and 70,419,247.40 is: 105,626,436.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,889,167.40 : 412,324,247.10 = 70,419,247.40 : x
  2. Step 2: Convert to fraction form
    274,889,167.40/412,324,247.10 = 70,419,247.40/x
  3. Step 3: Cross multiply
    274,889,167.40x = 412,324,247.10 × 70,419,247.40
  4. Step 4: Simplify right side
    274,889,167.40x = 29,035,563,165,553,636
  5. Step 5: Solve for x
    x = 29,035,563,165,553,636/274,889,167.40
  6. Step 6: Final answer
    x = 105,626,436.43

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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.