Home / 12,790,781.80-19,196,670.30-12,370,877.80

Finding the Fourth Proportional to 12,790,781.80, 19,196,670.30 and 12,370,877.80

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Solution

The fourth proportional to 12,790,781.80, 19,196,670.30 and 12,370,877.80 is: 18,566,469.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790,781.80 : 19,196,670.30 = 12,370,877.80 : x
  2. Step 2: Convert to fraction form
    12,790,781.80/19,196,670.30 = 12,370,877.80/x
  3. Step 3: Cross multiply
    12,790,781.80x = 19,196,670.30 × 12,370,877.80
  4. Step 4: Simplify right side
    12,790,781.80x = 237,479,662,448,189.38
  5. Step 5: Solve for x
    x = 237,479,662,448,189.38/12,790,781.80
  6. Step 6: Final answer
    x = 18,566,469.68

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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.