Home / 66,650,154.12-91,940,198.46-38,769,723.72

Finding the Fourth Proportional to 66,650,154.12, 91,940,198.46 and 38,769,723.72

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Solution

The fourth proportional to 66,650,154.12, 91,940,198.46 and 38,769,723.72 is: 53,480,687.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,650,154.12 : 91,940,198.46 = 38,769,723.72 : x
  2. Step 2: Convert to fraction form
    66,650,154.12/91,940,198.46 = 38,769,723.72/x
  3. Step 3: Cross multiply
    66,650,154.12x = 91,940,198.46 × 38,769,723.72
  4. Step 4: Simplify right side
    66,650,154.12x = 3,564,496,093,056,169
  5. Step 5: Solve for x
    x = 3,564,496,093,056,169/66,650,154.12
  6. Step 6: Final answer
    x = 53,480,687.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.