Home / 140,221,212.08-193,505,354.64-78,341,550.56

Finding the Fourth Proportional to 140,221,212.08, 193,505,354.64 and 78,341,550.56

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Solution

The fourth proportional to 140,221,212.08, 193,505,354.64 and 78,341,550.56 is: 108,111,385.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,221,212.08 : 193,505,354.64 = 78,341,550.56 : x
  2. Step 2: Convert to fraction form
    140,221,212.08/193,505,354.64 = 78,341,550.56/x
  3. Step 3: Cross multiply
    140,221,212.08x = 193,505,354.64 × 78,341,550.56
  4. Step 4: Simplify right side
    140,221,212.08x = 15,159,509,524,160,290
  5. Step 5: Solve for x
    x = 15,159,509,524,160,290/140,221,212.08
  6. Step 6: Final answer
    x = 108,111,385.57

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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.