Home / 12,347,841.20-18,521,761.80-12,111,645.20

Finding the Fourth Proportional to 12,347,841.20, 18,521,761.80 and 12,111,645.20

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Solution

The fourth proportional to 12,347,841.20, 18,521,761.80 and 12,111,645.20 is: 18,167,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347,841.20 : 18,521,761.80 = 12,111,645.20 : x
  2. Step 2: Convert to fraction form
    12,347,841.20/18,521,761.80 = 12,111,645.20/x
  3. Step 3: Cross multiply
    12,347,841.20x = 18,521,761.80 × 12,111,645.20
  4. Step 4: Simplify right side
    12,347,841.20x = 224,329,007,400,513.34
  5. Step 5: Solve for x
    x = 224,329,007,400,513.34/12,347,841.20
  6. Step 6: Final answer
    x = 18,167,467.80

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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.