Home / 139,163,149.17-192,039,884.55-77,287,473.54

Finding the Fourth Proportional to 139,163,149.17, 192,039,884.55 and 77,287,473.54

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Solution

The fourth proportional to 139,163,149.17, 192,039,884.55 and 77,287,473.54 is: 106,653,791.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,163,149.17 : 192,039,884.55 = 77,287,473.54 : x
  2. Step 2: Convert to fraction form
    139,163,149.17/192,039,884.55 = 77,287,473.54/x
  3. Step 3: Cross multiply
    139,163,149.17x = 192,039,884.55 × 77,287,473.54
  4. Step 4: Simplify right side
    139,163,149.17x = 14,842,277,495,782,782
  5. Step 5: Solve for x
    x = 14,842,277,495,782,782/139,163,149.17
  6. Step 6: Final answer
    x = 106,653,791.50

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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.