Home / 19,920,665.43-27,489,792.51-11,099,660.94

Finding the Fourth Proportional to 19,920,665.43, 27,489,792.51 and 11,099,660.94

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Solution

The fourth proportional to 19,920,665.43, 27,489,792.51 and 11,099,660.94 is: 15,317,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920,665.43 : 27,489,792.51 = 11,099,660.94 : x
  2. Step 2: Convert to fraction form
    19,920,665.43/27,489,792.51 = 11,099,660.94/x
  3. Step 3: Cross multiply
    19,920,665.43x = 27,489,792.51 × 11,099,660.94
  4. Step 4: Simplify right side
    19,920,665.43x = 305,127,376,171,951.56
  5. Step 5: Solve for x
    x = 305,127,376,171,951.56/19,920,665.43
  6. Step 6: Final answer
    x = 15,317,127.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.