Home / 20,489,021.10-30,733,531.65-19,313,289.90

Finding the Fourth Proportional to 20,489,021.10, 30,733,531.65 and 19,313,289.90

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Solution

The fourth proportional to 20,489,021.10, 30,733,531.65 and 19,313,289.90 is: 28,969,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,489,021.10 : 30,733,531.65 = 19,313,289.90 : x
  2. Step 2: Convert to fraction form
    20,489,021.10/30,733,531.65 = 19,313,289.90/x
  3. Step 3: Cross multiply
    20,489,021.10x = 30,733,531.65 × 19,313,289.90
  4. Step 4: Simplify right side
    20,489,021.10x = 593,565,606,407,275.25
  5. Step 5: Solve for x
    x = 593,565,606,407,275.25/20,489,021.10
  6. Step 6: Final answer
    x = 28,969,934.85

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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.