Home / 28,253,859.60-42,380,789.40-9,086,554.20

Finding the Fourth Proportional to 28,253,859.60, 42,380,789.40 and 9,086,554.20

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Solution

The fourth proportional to 28,253,859.60, 42,380,789.40 and 9,086,554.20 is: 13,629,831.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,253,859.60 : 42,380,789.40 = 9,086,554.20 : x
  2. Step 2: Convert to fraction form
    28,253,859.60/42,380,789.40 = 9,086,554.20/x
  3. Step 3: Cross multiply
    28,253,859.60x = 42,380,789.40 × 9,086,554.20
  4. Step 4: Simplify right side
    28,253,859.60x = 385,095,339,921,885.44
  5. Step 5: Solve for x
    x = 385,095,339,921,885.44/28,253,859.60
  6. Step 6: Final answer
    x = 13,629,831.30

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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.