Home / 18,689,972.20-28,004,777.70-10,578,826.60

Finding the Fourth Proportional to 18,689,972.20, 28,004,777.70 and 10,578,826.60

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Solution

The fourth proportional to 18,689,972.20, 28,004,777.70 and 10,578,826.60 is: 15,851,157.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,972.20 : 28,004,777.70 = 10,578,826.60 : x
  2. Step 2: Convert to fraction form
    18,689,972.20/28,004,777.70 = 10,578,826.60/x
  3. Step 3: Cross multiply
    18,689,972.20x = 28,004,777.70 × 10,578,826.60
  4. Step 4: Simplify right side
    18,689,972.20x = 296,257,687,259,846.81
  5. Step 5: Solve for x
    x = 296,257,687,259,846.81/18,689,972.20
  6. Step 6: Final answer
    x = 15,851,157.19

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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.