Home / 133,969,830-200,954,182.68-52,145,769.21

Finding the Fourth Proportional to 133,969,830, 200,954,182.68 and 52,145,769.21

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Solution

The fourth proportional to 133,969,830, 200,954,182.68 and 52,145,769.21 is: 78,218,434.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,969,830 : 200,954,182.68 = 52,145,769.21 : x
  2. Step 2: Convert to fraction form
    133,969,830/200,954,182.68 = 52,145,769.21/x
  3. Step 3: Cross multiply
    133,969,830x = 200,954,182.68 × 52,145,769.21
  4. Step 4: Simplify right side
    133,969,830x = 10,478,910,431,815,460
  5. Step 5: Solve for x
    x = 10,478,910,431,815,460/133,969,830
  6. Step 6: Final answer
    x = 78,218,434.94

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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.