Home / 20,936,110.80-31,404,166.20-19,424,456.40

Finding the Fourth Proportional to 20,936,110.80, 31,404,166.20 and 19,424,456.40

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Solution

The fourth proportional to 20,936,110.80, 31,404,166.20 and 19,424,456.40 is: 29,136,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,936,110.80 : 31,404,166.20 = 19,424,456.40 : x
  2. Step 2: Convert to fraction form
    20,936,110.80/31,404,166.20 = 19,424,456.40/x
  3. Step 3: Cross multiply
    20,936,110.80x = 31,404,166.20 × 19,424,456.40
  4. Step 4: Simplify right side
    20,936,110.80x = 610,008,857,130,253.62
  5. Step 5: Solve for x
    x = 610,008,857,130,253.62/20,936,110.80
  6. Step 6: Final answer
    x = 29,136,684.60

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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.