Home / 20,820,363,755.06-28,732,101,982.00-11,909,692,508.06

Finding the Fourth Proportional to 20,820,363,755.06, 28,732,101,982.00 and 11,909,692,508.06

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Solution

The fourth proportional to 20,820,363,755.06, 28,732,101,982.00 and 11,909,692,508.06 is: 16,435,375,661.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,820,363,755.06 : 28,732,101,982.00 = 11,909,692,508.06 : x
  2. Step 2: Convert to fraction form
    20,820,363,755.06/28,732,101,982.00 = 11,909,692,508.06/x
  3. Step 3: Cross multiply
    20,820,363,755.06x = 28,732,101,982.00 × 11,909,692,508.06
  4. Step 4: Simplify right side
    20,820,363,755.06x = 342,190,499,715,874,947,072
  5. Step 5: Solve for x
    x = 342,190,499,715,874,947,072/20,820,363,755.06
  6. Step 6: Final answer
    x = 16,435,375,661.13

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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.