Home / 144,048,269.86-198,786,622.11-78,858,173.86

Finding the Fourth Proportional to 144,048,269.86, 198,786,622.11 and 78,858,173.86

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Solution

The fourth proportional to 144,048,269.86, 198,786,622.11 and 78,858,173.86 is: 108,824,285.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,048,269.86 : 198,786,622.11 = 78,858,173.86 : x
  2. Step 2: Convert to fraction form
    144,048,269.86/198,786,622.11 = 78,858,173.86/x
  3. Step 3: Cross multiply
    144,048,269.86x = 198,786,622.11 × 78,858,173.86
  4. Step 4: Simplify right side
    144,048,269.86x = 15,675,950,007,392,502
  5. Step 5: Solve for x
    x = 15,675,950,007,392,502/144,048,269.86
  6. Step 6: Final answer
    x = 108,824,285.24

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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.