Home / 20,270,592,010.20-30,405,888,015.30-19,944,074,659.80

Finding the Fourth Proportional to 20,270,592,010.20, 30,405,888,015.30 and 19,944,074,659.80

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Solution

The fourth proportional to 20,270,592,010.20, 30,405,888,015.30 and 19,944,074,659.80 is: 29,916,111,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,270,592,010.20 : 30,405,888,015.30 = 19,944,074,659.80 : x
  2. Step 2: Convert to fraction form
    20,270,592,010.20/30,405,888,015.30 = 19,944,074,659.80/x
  3. Step 3: Cross multiply
    20,270,592,010.20x = 30,405,888,015.30 × 19,944,074,659.80
  4. Step 4: Simplify right side
    20,270,592,010.20x = 606,417,300,674,661,187,584
  5. Step 5: Solve for x
    x = 606,417,300,674,661,187,584/20,270,592,010.20
  6. Step 6: Final answer
    x = 29,916,111,989.70

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Double scale
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Similar ratio
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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.