Home / 118,457,861.78-163,471,291.25-66,247,105.04

Finding the Fourth Proportional to 118,457,861.78, 163,471,291.25 and 66,247,105.04

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Solution

The fourth proportional to 118,457,861.78, 163,471,291.25 and 66,247,105.04 is: 91,420,692.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,457,861.78 : 163,471,291.25 = 66,247,105.04 : x
  2. Step 2: Convert to fraction form
    118,457,861.78/163,471,291.25 = 66,247,105.04/x
  3. Step 3: Cross multiply
    118,457,861.78x = 163,471,291.25 × 66,247,105.04
  4. Step 4: Simplify right side
    118,457,861.78x = 10,829,499,802,131,948
  5. Step 5: Solve for x
    x = 10,829,499,802,131,948/118,457,861.78
  6. Step 6: Final answer
    x = 91,420,692.89

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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.