Home / 138,784,690.44-191,522,356.74-76,904,979.66

Finding the Fourth Proportional to 138,784,690.44, 191,522,356.74 and 76,904,979.66

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Solution

The fourth proportional to 138,784,690.44, 191,522,356.74 and 76,904,979.66 is: 106,128,585.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,784,690.44 : 191,522,356.74 = 76,904,979.66 : x
  2. Step 2: Convert to fraction form
    138,784,690.44/191,522,356.74 = 76,904,979.66/x
  3. Step 3: Cross multiply
    138,784,690.44x = 191,522,356.74 × 76,904,979.66
  4. Step 4: Simplify right side
    138,784,690.44x = 14,729,022,949,524,964
  5. Step 5: Solve for x
    x = 14,729,022,949,524,964/138,784,690.44
  6. Step 6: Final answer
    x = 106,128,585.96

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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.