Home / 20,247,937,670.97-27,942,151,591.86-12,109,739,826.25

Finding the Fourth Proportional to 20,247,937,670.97, 27,942,151,591.86 and 12,109,739,826.25

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Solution

The fourth proportional to 20,247,937,670.97, 27,942,151,591.86 and 12,109,739,826.25 is: 16,711,439,528.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247,937,670.97 : 27,942,151,591.86 = 12,109,739,826.25 : x
  2. Step 2: Convert to fraction form
    20,247,937,670.97/27,942,151,591.86 = 12,109,739,826.25/x
  3. Step 3: Cross multiply
    20,247,937,670.97x = 27,942,151,591.86 × 12,109,739,826.25
  4. Step 4: Simplify right side
    20,247,937,670.97x = 338,372,185,963,061,903,360
  5. Step 5: Solve for x
    x = 338,372,185,963,061,903,360/20,247,937,670.97
  6. Step 6: Final answer
    x = 16,711,439,528.39

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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.