Home / 18,362,720.94-27,512,160.93-12,886,200.78

Finding the Fourth Proportional to 18,362,720.94, 27,512,160.93 and 12,886,200.78

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Solution

The fourth proportional to 18,362,720.94, 27,512,160.93 and 12,886,200.78 is: 19,306,900.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,362,720.94 : 27,512,160.93 = 12,886,200.78 : x
  2. Step 2: Convert to fraction form
    18,362,720.94/27,512,160.93 = 12,886,200.78/x
  3. Step 3: Cross multiply
    18,362,720.94x = 27,512,160.93 × 12,886,200.78
  4. Step 4: Simplify right side
    18,362,720.94x = 354,527,229,635,651.50
  5. Step 5: Solve for x
    x = 354,527,229,635,651.50/18,362,720.94
  6. Step 6: Final answer
    x = 19,306,900.69

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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.