Home / 18,686,912.20-28,006,748.70-9,081,608.20

Finding the Fourth Proportional to 18,686,912.20, 28,006,748.70 and 9,081,608.20

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Solution

The fourth proportional to 18,686,912.20, 28,006,748.70 and 9,081,608.20 is: 13,610,933.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686,912.20 : 28,006,748.70 = 9,081,608.20 : x
  2. Step 2: Convert to fraction form
    18,686,912.20/28,006,748.70 = 9,081,608.20/x
  3. Step 3: Cross multiply
    18,686,912.20x = 28,006,748.70 × 9,081,608.20
  4. Step 4: Simplify right side
    18,686,912.20x = 254,346,318,649,259.31
  5. Step 5: Solve for x
    x = 254,346,318,649,259.31/18,686,912.20
  6. Step 6: Final answer
    x = 13,610,933.47

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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.