Home / 20,347,959.80-30,521,939.70-7,565,819.60

Finding the Fourth Proportional to 20,347,959.80, 30,521,939.70 and 7,565,819.60

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Solution

The fourth proportional to 20,347,959.80, 30,521,939.70 and 7,565,819.60 is: 11,348,729.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347,959.80 : 30,521,939.70 = 7,565,819.60 : x
  2. Step 2: Convert to fraction form
    20,347,959.80/30,521,939.70 = 7,565,819.60/x
  3. Step 3: Cross multiply
    20,347,959.80x = 30,521,939.70 × 7,565,819.60
  4. Step 4: Simplify right side
    20,347,959.80x = 230,923,489,612,278.09
  5. Step 5: Solve for x
    x = 230,923,489,612,278.09/20,347,959.80
  6. Step 6: Final answer
    x = 11,348,729.40

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1.5x scale

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.