Home / 121,394,865.20-182,092,297.80-108,640,281.20

Finding the Fourth Proportional to 121,394,865.20, 182,092,297.80 and 108,640,281.20

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Solution

The fourth proportional to 121,394,865.20, 182,092,297.80 and 108,640,281.20 is: 162,960,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,394,865.20 : 182,092,297.80 = 108,640,281.20 : x
  2. Step 2: Convert to fraction form
    121,394,865.20/182,092,297.80 = 108,640,281.20/x
  3. Step 3: Cross multiply
    121,394,865.20x = 182,092,297.80 × 108,640,281.20
  4. Step 4: Simplify right side
    121,394,865.20x = 19,782,558,437,346,144
  5. Step 5: Solve for x
    x = 19,782,558,437,346,144/121,394,865.20
  6. Step 6: Final answer
    x = 162,960,421.80

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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.