Home / 18,687,012.20-28,006,898.70-9,081,708.20

Finding the Fourth Proportional to 18,687,012.20, 28,006,898.70 and 9,081,708.20

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Solution

The fourth proportional to 18,687,012.20, 28,006,898.70 and 9,081,708.20 is: 13,611,083.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,687,012.20 : 28,006,898.70 = 9,081,708.20 : x
  2. Step 2: Convert to fraction form
    18,687,012.20/28,006,898.70 = 9,081,708.20/x
  3. Step 3: Cross multiply
    18,687,012.20x = 28,006,898.70 × 9,081,708.20
  4. Step 4: Simplify right side
    18,687,012.20x = 254,350,481,580,359.31
  5. Step 5: Solve for x
    x = 254,350,481,580,359.31/18,687,012.20
  6. Step 6: Final answer
    x = 13,611,083.40

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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.