Home / 639,528,773.40-959,384,668.68-196,908,903.54

Finding the Fourth Proportional to 639,528,773.40, 959,384,668.68 and 196,908,903.54

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Solution

The fourth proportional to 639,528,773.40, 959,384,668.68 and 196,908,903.54 is: 295,391,530.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,528,773.40 : 959,384,668.68 = 196,908,903.54 : x
  2. Step 2: Convert to fraction form
    639,528,773.40/959,384,668.68 = 196,908,903.54/x
  3. Step 3: Cross multiply
    639,528,773.40x = 959,384,668.68 × 196,908,903.54
  4. Step 4: Simplify right side
    639,528,773.40x = 188,911,383,182,864,960
  5. Step 5: Solve for x
    x = 188,911,383,182,864,960/639,528,773.40
  6. Step 6: Final answer
    x = 295,391,530.51

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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.