Home / 356,576,900.70-534,902,039.82-123,407,203.45

Finding the Fourth Proportional to 356,576,900.70, 534,902,039.82 and 123,407,203.45

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Solution

The fourth proportional to 356,576,900.70, 534,902,039.82 and 123,407,203.45 is: 185,123,502.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,576,900.70 : 534,902,039.82 = 123,407,203.45 : x
  2. Step 2: Convert to fraction form
    356,576,900.70/534,902,039.82 = 123,407,203.45/x
  3. Step 3: Cross multiply
    356,576,900.70x = 534,902,039.82 × 123,407,203.45
  4. Step 4: Simplify right side
    356,576,900.70x = 66,010,764,853,886,744
  5. Step 5: Solve for x
    x = 66,010,764,853,886,744/356,576,900.70
  6. Step 6: Final answer
    x = 185,123,502.74

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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.