Home / 28,586,845.92-42,882,135.13-20,933,395.68

Finding the Fourth Proportional to 28,586,845.92, 42,882,135.13 and 20,933,395.68

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Solution

The fourth proportional to 28,586,845.92, 42,882,135.13 and 20,933,395.68 is: 31,401,460.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,586,845.92 : 42,882,135.13 = 20,933,395.68 : x
  2. Step 2: Convert to fraction form
    28,586,845.92/42,882,135.13 = 20,933,395.68/x
  3. Step 3: Cross multiply
    28,586,845.92x = 42,882,135.13 × 20,933,395.68
  4. Step 4: Simplify right side
    28,586,845.92x = 897,668,702,348,742.62
  5. Step 5: Solve for x
    x = 897,668,702,348,742.62/28,586,845.92
  6. Step 6: Final answer
    x = 31,401,460.12

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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.