Home / 71,505,320.62-107,258,977.40-20,387,339.44

Finding the Fourth Proportional to 71,505,320.62, 107,258,977.40 and 20,387,339.44

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Solution

The fourth proportional to 71,505,320.62, 107,258,977.40 and 20,387,339.44 is: 30,581,293.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,505,320.62 : 107,258,977.40 = 20,387,339.44 : x
  2. Step 2: Convert to fraction form
    71,505,320.62/107,258,977.40 = 20,387,339.44/x
  3. Step 3: Cross multiply
    71,505,320.62x = 107,258,977.40 × 20,387,339.44
  4. Step 4: Simplify right side
    71,505,320.62x = 2,186,725,180,241,089
  5. Step 5: Solve for x
    x = 2,186,725,180,241,089/71,505,320.62
  6. Step 6: Final answer
    x = 30,581,293.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.