Home / 13,149,020.80-19,723,531.20-7,760,252.80

Finding the Fourth Proportional to 13,149,020.80, 19,723,531.20 and 7,760,252.80

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Solution

The fourth proportional to 13,149,020.80, 19,723,531.20 and 7,760,252.80 is: 11,640,379.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149,020.80 : 19,723,531.20 = 7,760,252.80 : x
  2. Step 2: Convert to fraction form
    13,149,020.80/19,723,531.20 = 7,760,252.80/x
  3. Step 3: Cross multiply
    13,149,020.80x = 19,723,531.20 × 7,760,252.80
  4. Step 4: Simplify right side
    13,149,020.80x = 153,059,588,220,687.34
  5. Step 5: Solve for x
    x = 153,059,588,220,687.34/13,149,020.80
  6. Step 6: Final answer
    x = 11,640,379.20

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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.