Home / 81,078,615.20-121,617,892.16-32,556,454.56

Finding the Fourth Proportional to 81,078,615.20, 121,617,892.16 and 32,556,454.56

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Solution

The fourth proportional to 81,078,615.20, 121,617,892.16 and 32,556,454.56 is: 48,834,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,078,615.20 : 121,617,892.16 = 32,556,454.56 : x
  2. Step 2: Convert to fraction form
    81,078,615.20/121,617,892.16 = 32,556,454.56/x
  3. Step 3: Cross multiply
    81,078,615.20x = 121,617,892.16 × 32,556,454.56
  4. Step 4: Simplify right side
    81,078,615.20x = 3,959,447,379,790,020
  5. Step 5: Solve for x
    x = 3,959,447,379,790,020/81,078,615.20
  6. Step 6: Final answer
    x = 48,834,669.54

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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.