Home / 860,508,422.12-1,290,988,201.05-270,274,820.54

Finding the Fourth Proportional to 860,508,422.12, 1,290,988,201.05 and 270,274,820.54

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Solution

The fourth proportional to 860,508,422.12, 1,290,988,201.05 and 270,274,820.54 is: 405,483,078.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,508,422.12 : 1,290,988,201.05 = 270,274,820.54 : x
  2. Step 2: Convert to fraction form
    860,508,422.12/1,290,988,201.05 = 270,274,820.54/x
  3. Step 3: Cross multiply
    860,508,422.12x = 1,290,988,201.05 × 270,274,820.54
  4. Step 4: Simplify right side
    860,508,422.12x = 348,921,604,351,591,296
  5. Step 5: Solve for x
    x = 348,921,604,351,591,296/860,508,422.12
  6. Step 6: Final answer
    x = 405,483,078.82

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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.