Home / 66,568,009.20-99,684,052.20-53,131,081.20

Finding the Fourth Proportional to 66,568,009.20, 99,684,052.20 and 53,131,081.20

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Solution

The fourth proportional to 66,568,009.20, 99,684,052.20 and 53,131,081.20 is: 79,562,563.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,568,009.20 : 99,684,052.20 = 53,131,081.20 : x
  2. Step 2: Convert to fraction form
    66,568,009.20/99,684,052.20 = 53,131,081.20/x
  3. Step 3: Cross multiply
    66,568,009.20x = 99,684,052.20 × 53,131,081.20
  4. Step 4: Simplify right side
    66,568,009.20x = 5,296,321,471,783,239
  5. Step 5: Solve for x
    x = 5,296,321,471,783,239/66,568,009.20
  6. Step 6: Final answer
    x = 79,562,563.69

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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.