Home / 911,345,633.76-1,367,027,021.52-221,258,949.60

Finding the Fourth Proportional to 911,345,633.76, 1,367,027,021.52 and 221,258,949.60

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Solution

The fourth proportional to 911,345,633.76, 1,367,027,021.52 and 221,258,949.60 is: 331,890,505.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,345,633.76 : 1,367,027,021.52 = 221,258,949.60 : x
  2. Step 2: Convert to fraction form
    911,345,633.76/1,367,027,021.52 = 221,258,949.60/x
  3. Step 3: Cross multiply
    911,345,633.76x = 1,367,027,021.52 × 221,258,949.60
  4. Step 4: Simplify right side
    911,345,633.76x = 302,466,962,856,331,776
  5. Step 5: Solve for x
    x = 302,466,962,856,331,776/911,345,633.76
  6. Step 6: Final answer
    x = 331,890,505.26

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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.