Home / 20,562,352.67-28,388,948.84-13,232,923.49

Finding the Fourth Proportional to 20,562,352.67, 28,388,948.84 and 13,232,923.49

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Solution

The fourth proportional to 20,562,352.67, 28,388,948.84 and 13,232,923.49 is: 18,269,737.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562,352.67 : 28,388,948.84 = 13,232,923.49 : x
  2. Step 2: Convert to fraction form
    20,562,352.67/28,388,948.84 = 13,232,923.49/x
  3. Step 3: Cross multiply
    20,562,352.67x = 28,388,948.84 × 13,232,923.49
  4. Step 4: Simplify right side
    20,562,352.67x = 375,668,787,753,134.88
  5. Step 5: Solve for x
    x = 375,668,787,753,134.88/20,562,352.67
  6. Step 6: Final answer
    x = 18,269,737.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.