Home / 639,528,502.28-959,384,262.16-196,908,632.62

Finding the Fourth Proportional to 639,528,502.28, 959,384,262.16 and 196,908,632.62

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Solution

The fourth proportional to 639,528,502.28, 959,384,262.16 and 196,908,632.62 is: 295,391,124.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,528,502.28 : 959,384,262.16 = 196,908,632.62 : x
  2. Step 2: Convert to fraction form
    639,528,502.28/959,384,262.16 = 196,908,632.62/x
  3. Step 3: Cross multiply
    639,528,502.28x = 959,384,262.16 × 196,908,632.62
  4. Step 4: Simplify right side
    639,528,502.28x = 188,911,043,213,291,744
  5. Step 5: Solve for x
    x = 188,911,043,213,291,744/639,528,502.28
  6. Step 6: Final answer
    x = 295,391,124.15

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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.