Home / 12,631,487,998.40-18,947,231,997.60-3,440,629,246.40

Finding the Fourth Proportional to 12,631,487,998.40, 18,947,231,997.60 and 3,440,629,246.40

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Solution

The fourth proportional to 12,631,487,998.40, 18,947,231,997.60 and 3,440,629,246.40 is: 5,160,943,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631,487,998.40 : 18,947,231,997.60 = 3,440,629,246.40 : x
  2. Step 2: Convert to fraction form
    12,631,487,998.40/18,947,231,997.60 = 3,440,629,246.40/x
  3. Step 3: Cross multiply
    12,631,487,998.40x = 18,947,231,997.60 × 3,440,629,246.40
  4. Step 4: Simplify right side
    12,631,487,998.40x = 65,190,400,549,268,447,232
  5. Step 5: Solve for x
    x = 65,190,400,549,268,447,232/12,631,487,998.40
  6. Step 6: Final answer
    x = 5,160,943,869.60

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Double scale
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Similar ratio
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1.5x scale

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.