Home / 20,810,654,737.72-28,718,724,792.49-11,295,208,448.91

Finding the Fourth Proportional to 20,810,654,737.72, 28,718,724,792.49 and 11,295,208,448.91

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Solution

The fourth proportional to 20,810,654,737.72, 28,718,724,792.49 and 11,295,208,448.91 is: 15,587,399,195.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810,654,737.72 : 28,718,724,792.49 = 11,295,208,448.91 : x
  2. Step 2: Convert to fraction form
    20,810,654,737.72/28,718,724,792.49 = 11,295,208,448.91/x
  3. Step 3: Cross multiply
    20,810,654,737.72x = 28,718,724,792.49 × 11,295,208,448.91
  4. Step 4: Simplify right side
    20,810,654,737.72x = 324,383,982,918,054,117,376
  5. Step 5: Solve for x
    x = 324,383,982,918,054,117,376/20,810,654,737.72
  6. Step 6: Final answer
    x = 15,587,399,195.57

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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.