Home / 89,276,738.70-133,915,108.05-80,206,812.30

Finding the Fourth Proportional to 89,276,738.70, 133,915,108.05 and 80,206,812.30

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Solution

The fourth proportional to 89,276,738.70, 133,915,108.05 and 80,206,812.30 is: 120,310,218.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,276,738.70 : 133,915,108.05 = 80,206,812.30 : x
  2. Step 2: Convert to fraction form
    89,276,738.70/133,915,108.05 = 80,206,812.30/x
  3. Step 3: Cross multiply
    89,276,738.70x = 133,915,108.05 × 80,206,812.30
  4. Step 4: Simplify right side
    89,276,738.70x = 10,740,903,935,500,568
  5. Step 5: Solve for x
    x = 10,740,903,935,500,568/89,276,738.70
  6. Step 6: Final answer
    x = 120,310,218.45

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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.