Home / 139,727,042.44-192,824,635.22-77,005,398.78

Finding the Fourth Proportional to 139,727,042.44, 192,824,635.22 and 77,005,398.78

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Solution

The fourth proportional to 139,727,042.44, 192,824,635.22 and 77,005,398.78 is: 106,268,175.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,727,042.44 : 192,824,635.22 = 77,005,398.78 : x
  2. Step 2: Convert to fraction form
    139,727,042.44/192,824,635.22 = 77,005,398.78/x
  3. Step 3: Cross multiply
    139,727,042.44x = 192,824,635.22 × 77,005,398.78
  4. Step 4: Simplify right side
    139,727,042.44x = 14,848,537,929,724,134
  5. Step 5: Solve for x
    x = 14,848,537,929,724,134/139,727,042.44
  6. Step 6: Final answer
    x = 106,268,175.94

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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.