Home / 139,797,763.80-192,921,809.58-77,922,025.80

Finding the Fourth Proportional to 139,797,763.80, 192,921,809.58 and 77,922,025.80

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Solution

The fourth proportional to 139,797,763.80, 192,921,809.58 and 77,922,025.80 is: 107,532,894.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,797,763.80 : 192,921,809.58 = 77,922,025.80 : x
  2. Step 2: Convert to fraction form
    139,797,763.80/192,921,809.58 = 77,922,025.80/x
  3. Step 3: Cross multiply
    139,797,763.80x = 192,921,809.58 × 77,922,025.80
  4. Step 4: Simplify right side
    139,797,763.80x = 15,032,858,223,475,448
  5. Step 5: Solve for x
    x = 15,032,858,223,475,448/139,797,763.80
  6. Step 6: Final answer
    x = 107,532,894.77

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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.