Home / 78,468,150.78-108,285,946.62-48,687,722.64

Finding the Fourth Proportional to 78,468,150.78, 108,285,946.62 and 48,687,722.64

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Solution

The fourth proportional to 78,468,150.78, 108,285,946.62 and 48,687,722.64 is: 67,188,994.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,468,150.78 : 108,285,946.62 = 48,687,722.64 : x
  2. Step 2: Convert to fraction form
    78,468,150.78/108,285,946.62 = 48,687,722.64/x
  3. Step 3: Cross multiply
    78,468,150.78x = 108,285,946.62 × 48,687,722.64
  4. Step 4: Simplify right side
    78,468,150.78x = 5,272,196,134,844,406
  5. Step 5: Solve for x
    x = 5,272,196,134,844,406/78,468,150.78
  6. Step 6: Final answer
    x = 67,188,994.29

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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.