Home / 20,642,467.34-28,487,336.10-11,350,745.12

Finding the Fourth Proportional to 20,642,467.34, 28,487,336.10 and 11,350,745.12

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Solution

The fourth proportional to 20,642,467.34, 28,487,336.10 and 11,350,745.12 is: 15,664,430.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,642,467.34 : 28,487,336.10 = 11,350,745.12 : x
  2. Step 2: Convert to fraction form
    20,642,467.34/28,487,336.10 = 11,350,745.12/x
  3. Step 3: Cross multiply
    20,642,467.34x = 28,487,336.10 × 11,350,745.12
  4. Step 4: Simplify right side
    20,642,467.34x = 323,352,491,218,874.81
  5. Step 5: Solve for x
    x = 323,352,491,218,874.81/20,642,467.34
  6. Step 6: Final answer
    x = 15,664,430.32

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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.