Home / 11,981,772.80-17,972,659.20-7,446,809.60

Finding the Fourth Proportional to 11,981,772.80, 17,972,659.20 and 7,446,809.60

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Solution

The fourth proportional to 11,981,772.80, 17,972,659.20 and 7,446,809.60 is: 11,170,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981,772.80 : 17,972,659.20 = 7,446,809.60 : x
  2. Step 2: Convert to fraction form
    11,981,772.80/17,972,659.20 = 7,446,809.60/x
  3. Step 3: Cross multiply
    11,981,772.80x = 17,972,659.20 × 7,446,809.60
  4. Step 4: Simplify right side
    11,981,772.80x = 133,838,971,068,088.31
  5. Step 5: Solve for x
    x = 133,838,971,068,088.31/11,981,772.80
  6. Step 6: Final answer
    x = 11,170,214.40

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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.