Home / 20,289,642.31-27,996,716.94-12,338,128.27

Finding the Fourth Proportional to 20,289,642.31, 27,996,716.94 and 12,338,128.27

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Solution

The fourth proportional to 20,289,642.31, 27,996,716.94 and 12,338,128.27 is: 17,024,799.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289,642.31 : 27,996,716.94 = 12,338,128.27 : x
  2. Step 2: Convert to fraction form
    20,289,642.31/27,996,716.94 = 12,338,128.27/x
  3. Step 3: Cross multiply
    20,289,642.31x = 27,996,716.94 × 12,338,128.27
  4. Step 4: Simplify right side
    20,289,642.31x = 345,427,084,744,601.88
  5. Step 5: Solve for x
    x = 345,427,084,744,601.88/20,289,642.31
  6. Step 6: Final answer
    x = 17,024,799.13

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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.