Home / 53,503,911.18-80,230,585.52-20,729,833.86

Finding the Fourth Proportional to 53,503,911.18, 80,230,585.52 and 20,729,833.86

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Solution

The fourth proportional to 53,503,911.18, 80,230,585.52 and 20,729,833.86 is: 31,084,955.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,503,911.18 : 80,230,585.52 = 20,729,833.86 : x
  2. Step 2: Convert to fraction form
    53,503,911.18/80,230,585.52 = 20,729,833.86/x
  3. Step 3: Cross multiply
    53,503,911.18x = 80,230,585.52 × 20,729,833.86
  4. Step 4: Simplify right side
    53,503,911.18x = 1,663,166,708,320,121.50
  5. Step 5: Solve for x
    x = 1,663,166,708,320,121.50/53,503,911.18
  6. Step 6: Final answer
    x = 31,084,955.69

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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.