Home / 144,048,268.86-198,786,620.73-78,858,172.86

Finding the Fourth Proportional to 144,048,268.86, 198,786,620.73 and 78,858,172.86

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Solution

The fourth proportional to 144,048,268.86, 198,786,620.73 and 78,858,172.86 is: 108,824,283.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,048,268.86 : 198,786,620.73 = 78,858,172.86 : x
  2. Step 2: Convert to fraction form
    144,048,268.86/198,786,620.73 = 78,858,172.86/x
  3. Step 3: Cross multiply
    144,048,268.86x = 198,786,620.73 × 78,858,172.86
  4. Step 4: Simplify right side
    144,048,268.86x = 15,675,949,699,781,598
  5. Step 5: Solve for x
    x = 15,675,949,699,781,598/144,048,268.86
  6. Step 6: Final answer
    x = 108,824,283.86

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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.