Home / 12,486,534,771.93-18,722,322,428.09-3,974,240,691.20

Finding the Fourth Proportional to 12,486,534,771.93, 18,722,322,428.09 and 3,974,240,691.20

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Solution

The fourth proportional to 12,486,534,771.93, 18,722,322,428.09 and 3,974,240,691.20 is: 5,958,980,372.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486,534,771.93 : 18,722,322,428.09 = 3,974,240,691.20 : x
  2. Step 2: Convert to fraction form
    12,486,534,771.93/18,722,322,428.09 = 3,974,240,691.20/x
  3. Step 3: Cross multiply
    12,486,534,771.93x = 18,722,322,428.09 × 3,974,240,691.20
  4. Step 4: Simplify right side
    12,486,534,771.93x = 74,407,015,627,368,185,856
  5. Step 5: Solve for x
    x = 74,407,015,627,368,185,856/12,486,534,771.93
  6. Step 6: Final answer
    x = 5,958,980,372.57

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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.