Home / 22,126,571,573.76-30,515,371,462.89-15,683,647,791.24

Finding the Fourth Proportional to 22,126,571,573.76, 30,515,371,462.89 and 15,683,647,791.24

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Solution

The fourth proportional to 22,126,571,573.76, 30,515,371,462.89 and 15,683,647,791.24 is: 21,629,755,728.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,126,571,573.76 : 30,515,371,462.89 = 15,683,647,791.24 : x
  2. Step 2: Convert to fraction form
    22,126,571,573.76/30,515,371,462.89 = 15,683,647,791.24/x
  3. Step 3: Cross multiply
    22,126,571,573.76x = 30,515,371,462.89 × 15,683,647,791.24
  4. Step 4: Simplify right side
    22,126,571,573.76x = 478,592,338,242,822,864,896
  5. Step 5: Solve for x
    x = 478,592,338,242,822,864,896/22,126,571,573.76
  6. Step 6: Final answer
    x = 21,629,755,728.19

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Double scale
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1.5x scale

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.