Home / 139,163,164.97-192,039,906.35-77,287,489.34

Finding the Fourth Proportional to 139,163,164.97, 192,039,906.35 and 77,287,489.34

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Solution

The fourth proportional to 139,163,164.97, 192,039,906.35 and 77,287,489.34 is: 106,653,813.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,163,164.97 : 192,039,906.35 = 77,287,489.34 : x
  2. Step 2: Convert to fraction form
    139,163,164.97/192,039,906.35 = 77,287,489.34/x
  3. Step 3: Cross multiply
    139,163,164.97x = 192,039,906.35 × 77,287,489.34
  4. Step 4: Simplify right side
    139,163,164.97x = 14,842,282,214,113,240
  5. Step 5: Solve for x
    x = 14,842,282,214,113,240/139,163,164.97
  6. Step 6: Final answer
    x = 106,653,813.30

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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.