Home / 139,163,178.20-192,039,924.52-77,287,502.56

Finding the Fourth Proportional to 139,163,178.20, 192,039,924.52 and 77,287,502.56

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Solution

The fourth proportional to 139,163,178.20, 192,039,924.52 and 77,287,502.56 is: 106,653,831.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,163,178.20 : 192,039,924.52 = 77,287,502.56 : x
  2. Step 2: Convert to fraction form
    139,163,178.20/192,039,924.52 = 77,287,502.56/x
  3. Step 3: Cross multiply
    139,163,178.20x = 192,039,924.52 × 77,287,502.56
  4. Step 4: Simplify right side
    139,163,178.20x = 14,842,286,157,961,708
  5. Step 5: Solve for x
    x = 14,842,286,157,961,708/139,163,178.20
  6. Step 6: Final answer
    x = 106,653,831.49

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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.