Home / 18,517,453.77-27,663,554.92-11,987,330.86

Finding the Fourth Proportional to 18,517,453.77, 27,663,554.92 and 11,987,330.86

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Solution

The fourth proportional to 18,517,453.77, 27,663,554.92 and 11,987,330.86 is: 17,908,087.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517,453.77 : 27,663,554.92 = 11,987,330.86 : x
  2. Step 2: Convert to fraction form
    18,517,453.77/27,663,554.92 = 11,987,330.86/x
  3. Step 3: Cross multiply
    18,517,453.77x = 27,663,554.92 × 11,987,330.86
  4. Step 4: Simplify right side
    18,517,453.77x = 331,612,185,589,820.81
  5. Step 5: Solve for x
    x = 331,612,185,589,820.81/18,517,453.77
  6. Step 6: Final answer
    x = 17,908,087.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.