Home / 20,584,588-28,388,138.16-12,850,345.12

Finding the Fourth Proportional to 20,584,588, 28,388,138.16 and 12,850,345.12

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Solution

The fourth proportional to 20,584,588, 28,388,138.16 and 12,850,345.12 is: 17,721,869.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584,588 : 28,388,138.16 = 12,850,345.12 : x
  2. Step 2: Convert to fraction form
    20,584,588/28,388,138.16 = 12,850,345.12/x
  3. Step 3: Cross multiply
    20,584,588x = 28,388,138.16 × 12,850,345.12
  4. Step 4: Simplify right side
    20,584,588x = 364,797,372,670,241.75
  5. Step 5: Solve for x
    x = 364,797,372,670,241.75/20,584,588
  6. Step 6: Final answer
    x = 17,721,869.03

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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.