Home / 422,531,178.60-633,796,767.90-218,457,834.60

Finding the Fourth Proportional to 422,531,178.60, 633,796,767.90 and 218,457,834.60

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Solution

The fourth proportional to 422,531,178.60, 633,796,767.90 and 218,457,834.60 is: 327,686,751.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,531,178.60 : 633,796,767.90 = 218,457,834.60 : x
  2. Step 2: Convert to fraction form
    422,531,178.60/633,796,767.90 = 218,457,834.60/x
  3. Step 3: Cross multiply
    422,531,178.60x = 633,796,767.90 × 218,457,834.60
  4. Step 4: Simplify right side
    422,531,178.60x = 138,457,869,491,912,784
  5. Step 5: Solve for x
    x = 138,457,869,491,912,784/422,531,178.60
  6. Step 6: Final answer
    x = 327,686,751.90

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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.