Home / 139,727,042.37-192,824,635.13-77,005,398.71

Finding the Fourth Proportional to 139,727,042.37, 192,824,635.13 and 77,005,398.71

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Solution

The fourth proportional to 139,727,042.37, 192,824,635.13 and 77,005,398.71 is: 106,268,175.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,727,042.37 : 192,824,635.13 = 77,005,398.71 : x
  2. Step 2: Convert to fraction form
    139,727,042.37/192,824,635.13 = 77,005,398.71/x
  3. Step 3: Cross multiply
    139,727,042.37x = 192,824,635.13 × 77,005,398.71
  4. Step 4: Simplify right side
    139,727,042.37x = 14,848,537,907,946,772
  5. Step 5: Solve for x
    x = 14,848,537,907,946,772/139,727,042.37
  6. Step 6: Final answer
    x = 106,268,175.84

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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.