Home / 20,289,640.55-27,996,714.52-12,338,126.51

Finding the Fourth Proportional to 20,289,640.55, 27,996,714.52 and 12,338,126.51

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Solution

The fourth proportional to 20,289,640.55, 27,996,714.52 and 12,338,126.51 is: 17,024,796.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289,640.55 : 27,996,714.52 = 12,338,126.51 : x
  2. Step 2: Convert to fraction form
    20,289,640.55/27,996,714.52 = 12,338,126.51/x
  3. Step 3: Cross multiply
    20,289,640.55x = 27,996,714.52 × 12,338,126.51
  4. Step 4: Simplify right side
    20,289,640.55x = 345,427,005,441,285.06
  5. Step 5: Solve for x
    x = 345,427,005,441,285.06/20,289,640.55
  6. Step 6: Final answer
    x = 17,024,796.70

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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.