Home / 20,820,363,755.35-28,732,101,982.38-11,909,692,508.36

Finding the Fourth Proportional to 20,820,363,755.35, 28,732,101,982.38 and 11,909,692,508.36

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Solution

The fourth proportional to 20,820,363,755.35, 28,732,101,982.38 and 11,909,692,508.36 is: 16,435,375,661.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,820,363,755.35 : 28,732,101,982.38 = 11,909,692,508.36 : x
  2. Step 2: Convert to fraction form
    20,820,363,755.35/28,732,101,982.38 = 11,909,692,508.36/x
  3. Step 3: Cross multiply
    20,820,363,755.35x = 28,732,101,982.38 × 11,909,692,508.36
  4. Step 4: Simplify right side
    20,820,363,755.35x = 342,190,499,728,842,948,608
  5. Step 5: Solve for x
    x = 342,190,499,728,842,948,608/20,820,363,755.35
  6. Step 6: Final answer
    x = 16,435,375,661.53

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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.