Home / 822,649,509.82-1,135,277,213.97-451,371,442.78

Finding the Fourth Proportional to 822,649,509.82, 1,135,277,213.97 and 451,371,442.78

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Solution

The fourth proportional to 822,649,509.82, 1,135,277,213.97 and 451,371,442.78 is: 622,904,053.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,649,509.82 : 1,135,277,213.97 = 451,371,442.78 : x
  2. Step 2: Convert to fraction form
    822,649,509.82/1,135,277,213.97 = 451,371,442.78/x
  3. Step 3: Cross multiply
    822,649,509.82x = 1,135,277,213.97 × 451,371,442.78
  4. Step 4: Simplify right side
    822,649,509.82x = 512,431,714,024,897,664
  5. Step 5: Solve for x
    x = 512,431,714,024,897,664/822,649,509.82
  6. Step 6: Final answer
    x = 622,904,053.19

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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.