Home / 15,278,305,442.88-21,084,062,483.32-8,503,978,189.76

Finding the Fourth Proportional to 15,278,305,442.88, 21,084,062,483.32 and 8,503,978,189.76

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Solution

The fourth proportional to 15,278,305,442.88, 21,084,062,483.32 and 8,503,978,189.76 is: 11,735,490,442.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,278,305,442.88 : 21,084,062,483.32 = 8,503,978,189.76 : x
  2. Step 2: Convert to fraction form
    15,278,305,442.88/21,084,062,483.32 = 8,503,978,189.76/x
  3. Step 3: Cross multiply
    15,278,305,442.88x = 21,084,062,483.32 × 8,503,978,189.76
  4. Step 4: Simplify right side
    15,278,305,442.88x = 179,298,407,509,690,351,616
  5. Step 5: Solve for x
    x = 179,298,407,509,690,351,616/15,278,305,442.88
  6. Step 6: Final answer
    x = 11,735,490,442.97

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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.