Home / 139,727,039.37-192,824,630.98-77,005,395.71

Finding the Fourth Proportional to 139,727,039.37, 192,824,630.98 and 77,005,395.71

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Solution

The fourth proportional to 139,727,039.37, 192,824,630.98 and 77,005,395.71 is: 106,268,171.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,727,039.37 : 192,824,630.98 = 77,005,395.71 : x
  2. Step 2: Convert to fraction form
    139,727,039.37/192,824,630.98 = 77,005,395.71/x
  3. Step 3: Cross multiply
    139,727,039.37x = 192,824,630.98 × 77,005,395.71
  4. Step 4: Simplify right side
    139,727,039.37x = 14,848,537,010,748,924
  5. Step 5: Solve for x
    x = 14,848,537,010,748,924/139,727,039.37
  6. Step 6: Final answer
    x = 106,268,171.70

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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.