Home / 139,743,528.87-192,838,198.80-77,019,435.75

Finding the Fourth Proportional to 139,743,528.87, 192,838,198.80 and 77,019,435.75

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Solution

The fourth proportional to 139,743,528.87, 192,838,198.80 and 77,019,435.75 is: 106,282,483.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,743,528.87 : 192,838,198.80 = 77,019,435.75 : x
  2. Step 2: Convert to fraction form
    139,743,528.87/192,838,198.80 = 77,019,435.75/x
  3. Step 3: Cross multiply
    139,743,528.87x = 192,838,198.80 × 77,019,435.75
  4. Step 4: Simplify right side
    139,743,528.87x = 14,852,289,262,622,328
  5. Step 5: Solve for x
    x = 14,852,289,262,622,328/139,743,528.87
  6. Step 6: Final answer
    x = 106,282,483.22

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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.