Home / 79,285,843.26-118,928,534.58-21,778,169.58

Finding the Fourth Proportional to 79,285,843.26, 118,928,534.58 and 21,778,169.58

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Solution

The fourth proportional to 79,285,843.26, 118,928,534.58 and 21,778,169.58 is: 32,667,191.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,285,843.26 : 118,928,534.58 = 21,778,169.58 : x
  2. Step 2: Convert to fraction form
    79,285,843.26/118,928,534.58 = 21,778,169.58/x
  3. Step 3: Cross multiply
    79,285,843.26x = 118,928,534.58 × 21,778,169.58
  4. Step 4: Simplify right side
    79,285,843.26x = 2,590,045,793,984,134
  5. Step 5: Solve for x
    x = 2,590,045,793,984,134/79,285,843.26
  6. Step 6: Final answer
    x = 32,667,191.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.