Home / 81,179,931.62-112,029,183.53-47,690,822.30

Finding the Fourth Proportional to 81,179,931.62, 112,029,183.53 and 47,690,822.30

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Solution

The fourth proportional to 81,179,931.62, 112,029,183.53 and 47,690,822.30 is: 65,813,850.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,179,931.62 : 112,029,183.53 = 47,690,822.30 : x
  2. Step 2: Convert to fraction form
    81,179,931.62/112,029,183.53 = 47,690,822.30/x
  3. Step 3: Cross multiply
    81,179,931.62x = 112,029,183.53 × 47,690,822.30
  4. Step 4: Simplify right side
    81,179,931.62x = 5,342,763,883,904,863
  5. Step 5: Solve for x
    x = 5,342,763,883,904,863/81,179,931.62
  6. Step 6: Final answer
    x = 65,813,850.51

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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.