Home / 20,157,985.62-30,189,892.59-18,530,281.17

Finding the Fourth Proportional to 20,157,985.62, 30,189,892.59 and 18,530,281.17

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Solution

The fourth proportional to 20,157,985.62, 30,189,892.59 and 18,530,281.17 is: 27,752,137.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157,985.62 : 30,189,892.59 = 18,530,281.17 : x
  2. Step 2: Convert to fraction form
    20,157,985.62/30,189,892.59 = 18,530,281.17/x
  3. Step 3: Cross multiply
    20,157,985.62x = 30,189,892.59 × 18,530,281.17
  4. Step 4: Simplify right side
    20,157,985.62x = 559,427,198,184,799.56
  5. Step 5: Solve for x
    x = 559,427,198,184,799.56/20,157,985.62
  6. Step 6: Final answer
    x = 27,752,137.97

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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.