Home / 139,743,529.87-192,838,200.18-77,019,436.75

Finding the Fourth Proportional to 139,743,529.87, 192,838,200.18 and 77,019,436.75

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Solution

The fourth proportional to 139,743,529.87, 192,838,200.18 and 77,019,436.75 is: 106,282,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,743,529.87 : 192,838,200.18 = 77,019,436.75 : x
  2. Step 2: Convert to fraction form
    139,743,529.87/192,838,200.18 = 77,019,436.75/x
  3. Step 3: Cross multiply
    139,743,529.87x = 192,838,200.18 × 77,019,436.75
  4. Step 4: Simplify right side
    139,743,529.87x = 14,852,289,561,747,350
  5. Step 5: Solve for x
    x = 14,852,289,561,747,350/139,743,529.87
  6. Step 6: Final answer
    x = 106,282,484.60

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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.