Home / 28,939,072.20-39,934,453.02-17,178,843.24

Finding the Fourth Proportional to 28,939,072.20, 39,934,453.02 and 17,178,843.24

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Solution

The fourth proportional to 28,939,072.20, 39,934,453.02 and 17,178,843.24 is: 23,705,933.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,939,072.20 : 39,934,453.02 = 17,178,843.24 : x
  2. Step 2: Convert to fraction form
    28,939,072.20/39,934,453.02 = 17,178,843.24/x
  3. Step 3: Cross multiply
    28,939,072.20x = 39,934,453.02 × 17,178,843.24
  4. Step 4: Simplify right side
    28,939,072.20x = 686,027,708,305,724.62
  5. Step 5: Solve for x
    x = 686,027,708,305,724.62/28,939,072.20
  6. Step 6: Final answer
    x = 23,705,933.06

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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.