Home / 911,503,610.43-1,257,876,258.76-493,815,895.73

Finding the Fourth Proportional to 911,503,610.43, 1,257,876,258.76 and 493,815,895.73

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Solution

The fourth proportional to 911,503,610.43, 1,257,876,258.76 and 493,815,895.73 is: 681,466,627.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,503,610.43 : 1,257,876,258.76 = 493,815,895.73 : x
  2. Step 2: Convert to fraction form
    911,503,610.43/1,257,876,258.76 = 493,815,895.73/x
  3. Step 3: Cross multiply
    911,503,610.43x = 1,257,876,258.76 × 493,815,895.73
  4. Step 4: Simplify right side
    911,503,610.43x = 621,159,291,437,070,720
  5. Step 5: Solve for x
    x = 621,159,291,437,070,720/911,503,610.43
  6. Step 6: Final answer
    x = 681,466,627.59

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1.5x scale

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.