Home / 53,383,542.76-80,020,332.96-21,022,328.80

Finding the Fourth Proportional to 53,383,542.76, 80,020,332.96 and 21,022,328.80

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Solution

The fourth proportional to 53,383,542.76, 80,020,332.96 and 21,022,328.80 is: 31,511,841.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,383,542.76 : 80,020,332.96 = 21,022,328.80 : x
  2. Step 2: Convert to fraction form
    53,383,542.76/80,020,332.96 = 21,022,328.80/x
  3. Step 3: Cross multiply
    53,383,542.76x = 80,020,332.96 × 21,022,328.80
  4. Step 4: Simplify right side
    53,383,542.76x = 1,682,213,750,170,597.25
  5. Step 5: Solve for x
    x = 1,682,213,750,170,597.25/53,383,542.76
  6. Step 6: Final answer
    x = 31,511,841.72

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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.