Home / 836,775,789.26-1,254,775,820.37-312,003,989.54

Finding the Fourth Proportional to 836,775,789.26, 1,254,775,820.37 and 312,003,989.54

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Solution

The fourth proportional to 836,775,789.26, 1,254,775,820.37 and 312,003,989.54 is: 467,861,363.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,775,789.26 : 1,254,775,820.37 = 312,003,989.54 : x
  2. Step 2: Convert to fraction form
    836,775,789.26/1,254,775,820.37 = 312,003,989.54/x
  3. Step 3: Cross multiply
    836,775,789.26x = 1,254,775,820.37 × 312,003,989.54
  4. Step 4: Simplify right side
    836,775,789.26x = 391,495,061,938,535,296
  5. Step 5: Solve for x
    x = 391,495,061,938,535,296/836,775,789.26
  6. Step 6: Final answer
    x = 467,861,363.78

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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.