Home / 144,074,105.12-198,822,329.39-77,994,601.18

Finding the Fourth Proportional to 144,074,105.12, 198,822,329.39 and 77,994,601.18

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Solution

The fourth proportional to 144,074,105.12, 198,822,329.39 and 77,994,601.18 is: 107,632,584.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,074,105.12 : 198,822,329.39 = 77,994,601.18 : x
  2. Step 2: Convert to fraction form
    144,074,105.12/198,822,329.39 = 77,994,601.18/x
  3. Step 3: Cross multiply
    144,074,105.12x = 198,822,329.39 × 77,994,601.18
  4. Step 4: Simplify right side
    144,074,105.12x = 15,507,068,286,149,574
  5. Step 5: Solve for x
    x = 15,507,068,286,149,574/144,074,105.12
  6. Step 6: Final answer
    x = 107,632,584.45

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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.