Home / 20,289,640.67-27,996,714.69-12,338,126.63

Finding the Fourth Proportional to 20,289,640.67, 27,996,714.69 and 12,338,126.63

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Solution

The fourth proportional to 20,289,640.67, 27,996,714.69 and 12,338,126.63 is: 17,024,796.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289,640.67 : 27,996,714.69 = 12,338,126.63 : x
  2. Step 2: Convert to fraction form
    20,289,640.67/27,996,714.69 = 12,338,126.63/x
  3. Step 3: Cross multiply
    20,289,640.67x = 27,996,714.69 × 12,338,126.63
  4. Step 4: Simplify right side
    20,289,640.67x = 345,427,011,069,201.25
  5. Step 5: Solve for x
    x = 345,427,011,069,201.25/20,289,640.67
  6. Step 6: Final answer
    x = 17,024,796.87

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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.