Home / 812,632,196.19-1,121,438,170.31-441,354,227.57

Finding the Fourth Proportional to 812,632,196.19, 1,121,438,170.31 and 441,354,227.57

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Solution

The fourth proportional to 812,632,196.19, 1,121,438,170.31 and 441,354,227.57 is: 609,071,951.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,632,196.19 : 1,121,438,170.31 = 441,354,227.57 : x
  2. Step 2: Convert to fraction form
    812,632,196.19/1,121,438,170.31 = 441,354,227.57/x
  3. Step 3: Cross multiply
    812,632,196.19x = 1,121,438,170.31 × 441,354,227.57
  4. Step 4: Simplify right side
    812,632,196.19x = 494,951,477,416,870,208
  5. Step 5: Solve for x
    x = 494,951,477,416,870,208/812,632,196.19
  6. Step 6: Final answer
    x = 609,071,951.29

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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.