Home / 20,111,822.70-30,167,734.05-10,530,138.30

Finding the Fourth Proportional to 20,111,822.70, 30,167,734.05 and 10,530,138.30

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Solution

The fourth proportional to 20,111,822.70, 30,167,734.05 and 10,530,138.30 is: 15,795,207.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111,822.70 : 30,167,734.05 = 10,530,138.30 : x
  2. Step 2: Convert to fraction form
    20,111,822.70/30,167,734.05 = 10,530,138.30/x
  3. Step 3: Cross multiply
    20,111,822.70x = 30,167,734.05 × 10,530,138.30
  4. Step 4: Simplify right side
    20,111,822.70x = 317,670,411,744,119.12
  5. Step 5: Solve for x
    x = 317,670,411,744,119.12/20,111,822.70
  6. Step 6: Final answer
    x = 15,795,207.45

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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.