Home / 20,156,678.21-30,223,800.44-11,962,650.17

Finding the Fourth Proportional to 20,156,678.21, 30,223,800.44 and 11,962,650.17

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Solution

The fourth proportional to 20,156,678.21, 30,223,800.44 and 11,962,650.17 is: 17,937,318.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156,678.21 : 30,223,800.44 = 11,962,650.17 : x
  2. Step 2: Convert to fraction form
    20,156,678.21/30,223,800.44 = 11,962,650.17/x
  3. Step 3: Cross multiply
    20,156,678.21x = 30,223,800.44 × 11,962,650.17
  4. Step 4: Simplify right side
    20,156,678.21x = 361,556,751,471,612.06
  5. Step 5: Solve for x
    x = 361,556,751,471,612.06/20,156,678.21
  6. Step 6: Final answer
    x = 17,937,318.23

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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.