Home / 20,636,879.40-30,958,308.44-7,681,953.24

Finding the Fourth Proportional to 20,636,879.40, 30,958,308.44 and 7,681,953.24

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Solution

The fourth proportional to 20,636,879.40, 30,958,308.44 and 7,681,953.24 is: 11,524,042.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,636,879.40 : 30,958,308.44 = 7,681,953.24 : x
  2. Step 2: Convert to fraction form
    20,636,879.40/30,958,308.44 = 7,681,953.24/x
  3. Step 3: Cross multiply
    20,636,879.40x = 30,958,308.44 × 7,681,953.24
  4. Step 4: Simplify right side
    20,636,879.40x = 237,820,277,787,167.56
  5. Step 5: Solve for x
    x = 237,820,277,787,167.56/20,636,879.40
  6. Step 6: Final answer
    x = 11,524,042.62

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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.