Home / 3,991,942,147.07-5,510,576,395.08-2,487,311,892.38

Finding the Fourth Proportional to 3,991,942,147.07, 5,510,576,395.08 and 2,487,311,892.38

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Solution

The fourth proportional to 3,991,942,147.07, 5,510,576,395.08 and 2,487,311,892.38 is: 3,433,547,305.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,942,147.07 : 5,510,576,395.08 = 2,487,311,892.38 : x
  2. Step 2: Convert to fraction form
    3,991,942,147.07/5,510,576,395.08 = 2,487,311,892.38/x
  3. Step 3: Cross multiply
    3,991,942,147.07x = 5,510,576,395.08 × 2,487,311,892.38
  4. Step 4: Simplify right side
    3,991,942,147.07x = 13,706,522,201,364,770,816
  5. Step 5: Solve for x
    x = 13,706,522,201,364,770,816/3,991,942,147.07
  6. Step 6: Final answer
    x = 3,433,547,305.14

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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.