Home / 15,278,305,194.27-21,084,062,139.95-8,503,977,941.60

Finding the Fourth Proportional to 15,278,305,194.27, 21,084,062,139.95 and 8,503,977,941.60

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Solution

The fourth proportional to 15,278,305,194.27, 21,084,062,139.95 and 8,503,977,941.60 is: 11,735,490,100.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,278,305,194.27 : 21,084,062,139.95 = 8,503,977,941.60 : x
  2. Step 2: Convert to fraction form
    15,278,305,194.27/21,084,062,139.95 = 8,503,977,941.60/x
  3. Step 3: Cross multiply
    15,278,305,194.27x = 21,084,062,139.95 × 8,503,977,941.60
  4. Step 4: Simplify right side
    15,278,305,194.27x = 179,298,399,357,310,566,400
  5. Step 5: Solve for x
    x = 179,298,399,357,310,566,400/15,278,305,194.27
  6. Step 6: Final answer
    x = 11,735,490,100.34

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Double scale
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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.