Home / 20,581,570.20-30,875,711.94-8,447,776.68

Finding the Fourth Proportional to 20,581,570.20, 30,875,711.94 and 8,447,776.68

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Solution

The fourth proportional to 20,581,570.20, 30,875,711.94 and 8,447,776.68 is: 12,673,042.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,581,570.20 : 30,875,711.94 = 8,447,776.68 : x
  2. Step 2: Convert to fraction form
    20,581,570.20/30,875,711.94 = 8,447,776.68/x
  3. Step 3: Cross multiply
    20,581,570.20x = 30,875,711.94 × 8,447,776.68
  4. Step 4: Simplify right side
    20,581,570.20x = 260,831,119,305,129.56
  5. Step 5: Solve for x
    x = 260,831,119,305,129.56/20,581,570.20
  6. Step 6: Final answer
    x = 12,673,042.76

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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.