Home / 30,221,998.20-45,332,997.30-21,781,927.80

Finding the Fourth Proportional to 30,221,998.20, 45,332,997.30 and 21,781,927.80

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Solution

The fourth proportional to 30,221,998.20, 45,332,997.30 and 21,781,927.80 is: 32,672,891.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,221,998.20 : 45,332,997.30 = 21,781,927.80 : x
  2. Step 2: Convert to fraction form
    30,221,998.20/45,332,997.30 = 21,781,927.80/x
  3. Step 3: Cross multiply
    30,221,998.20x = 45,332,997.30 × 21,781,927.80
  4. Step 4: Simplify right side
    30,221,998.20x = 987,440,074,146,194.88
  5. Step 5: Solve for x
    x = 987,440,074,146,194.88/30,221,998.20
  6. Step 6: Final answer
    x = 32,672,891.70

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Double scale
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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.