Home / 3,940,332,871.38-5,437,659,190.09-2,156,186,471.72

Finding the Fourth Proportional to 3,940,332,871.38, 5,437,659,190.09 and 2,156,186,471.72

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Solution

The fourth proportional to 3,940,332,871.38, 5,437,659,190.09 and 2,156,186,471.72 is: 2,975,537,236.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940,332,871.38 : 5,437,659,190.09 = 2,156,186,471.72 : x
  2. Step 2: Convert to fraction form
    3,940,332,871.38/5,437,659,190.09 = 2,156,186,471.72/x
  3. Step 3: Cross multiply
    3,940,332,871.38x = 5,437,659,190.09 × 2,156,186,471.72
  4. Step 4: Simplify right side
    3,940,332,871.38x = 11,724,607,183,498,502,144
  5. Step 5: Solve for x
    x = 11,724,607,183,498,502,144/3,940,332,871.38
  6. Step 6: Final answer
    x = 2,975,537,236.63

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.