Home / 20,111,521.70-27,767,785.30-18,826,615.46

Finding the Fourth Proportional to 20,111,521.70, 27,767,785.30 and 18,826,615.46

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Solution

The fourth proportional to 20,111,521.70, 27,767,785.30 and 18,826,615.46 is: 25,993,727.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111,521.70 : 27,767,785.30 = 18,826,615.46 : x
  2. Step 2: Convert to fraction form
    20,111,521.70/27,767,785.30 = 18,826,615.46/x
  3. Step 3: Cross multiply
    20,111,521.70x = 27,767,785.30 × 18,826,615.46
  4. Step 4: Simplify right side
    20,111,521.70x = 522,773,416,018,940.75
  5. Step 5: Solve for x
    x = 522,773,416,018,940.75/20,111,521.70
  6. Step 6: Final answer
    x = 25,993,727.57

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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.