Home / 143,988,458.85-198,703,944.83-81,277,756.65

Finding the Fourth Proportional to 143,988,458.85, 198,703,944.83 and 81,277,756.65

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Solution

The fourth proportional to 143,988,458.85, 198,703,944.83 and 81,277,756.65 is: 112,163,231.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,988,458.85 : 198,703,944.83 = 81,277,756.65 : x
  2. Step 2: Convert to fraction form
    143,988,458.85/198,703,944.83 = 81,277,756.65/x
  3. Step 3: Cross multiply
    143,988,458.85x = 198,703,944.83 × 81,277,756.65
  4. Step 4: Simplify right side
    143,988,458.85x = 16,150,210,872,881,378
  5. Step 5: Solve for x
    x = 16,150,210,872,881,378/143,988,458.85
  6. Step 6: Final answer
    x = 112,163,231.71

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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.