Home / 31,708,247,942.72-43,716,762,239.18-25,971,398,149.42

Finding the Fourth Proportional to 31,708,247,942.72, 43,716,762,239.18 and 25,971,398,149.42

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Solution

The fourth proportional to 31,708,247,942.72, 43,716,762,239.18 and 25,971,398,149.42 is: 35,807,258,728.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,708,247,942.72 : 43,716,762,239.18 = 25,971,398,149.42 : x
  2. Step 2: Convert to fraction form
    31,708,247,942.72/43,716,762,239.18 = 25,971,398,149.42/x
  3. Step 3: Cross multiply
    31,708,247,942.72x = 43,716,762,239.18 × 25,971,398,149.42
  4. Step 4: Simplify right side
    31,708,247,942.72x = 1,135,385,437,917,273,522,176
  5. Step 5: Solve for x
    x = 1,135,385,437,917,273,522,176/31,708,247,942.72
  6. Step 6: Final answer
    x = 35,807,258,728.65

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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.