Home / 930,856,313.20-1,396,284,469.80-412,736,767.60

Finding the Fourth Proportional to 930,856,313.20, 1,396,284,469.80 and 412,736,767.60

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Solution

The fourth proportional to 930,856,313.20, 1,396,284,469.80 and 412,736,767.60 is: 619,105,151.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,856,313.20 : 1,396,284,469.80 = 412,736,767.60 : x
  2. Step 2: Convert to fraction form
    930,856,313.20/1,396,284,469.80 = 412,736,767.60/x
  3. Step 3: Cross multiply
    930,856,313.20x = 1,396,284,469.80 × 412,736,767.60
  4. Step 4: Simplify right side
    930,856,313.20x = 576,297,938,715,331,840
  5. Step 5: Solve for x
    x = 576,297,938,715,331,840/930,856,313.20
  6. Step 6: Final answer
    x = 619,105,151.40

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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.