Home / 812,632,196.43-1,121,438,170.62-441,354,227.81

Finding the Fourth Proportional to 812,632,196.43, 1,121,438,170.62 and 441,354,227.81

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Solution

The fourth proportional to 812,632,196.43, 1,121,438,170.62 and 441,354,227.81 is: 609,071,951.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,632,196.43 : 1,121,438,170.62 = 441,354,227.81 : x
  2. Step 2: Convert to fraction form
    812,632,196.43/1,121,438,170.62 = 441,354,227.81/x
  3. Step 3: Cross multiply
    812,632,196.43x = 1,121,438,170.62 × 441,354,227.81
  4. Step 4: Simplify right side
    812,632,196.43x = 494,951,477,825,041,920
  5. Step 5: Solve for x
    x = 494,951,477,825,041,920/812,632,196.43
  6. Step 6: Final answer
    x = 609,071,951.62

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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.