Home / 13,260,657.21-18,288,789.44-7,822,900.41

Finding the Fourth Proportional to 13,260,657.21, 18,288,789.44 and 7,822,900.41

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Solution

The fourth proportional to 13,260,657.21, 18,288,789.44 and 7,822,900.41 is: 10,789,161.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260,657.21 : 18,288,789.44 = 7,822,900.41 : x
  2. Step 2: Convert to fraction form
    13,260,657.21/18,288,789.44 = 7,822,900.41/x
  3. Step 3: Cross multiply
    13,260,657.21x = 18,288,789.44 × 7,822,900.41
  4. Step 4: Simplify right side
    13,260,657.21x = 143,071,378,300,882.19
  5. Step 5: Solve for x
    x = 143,071,378,300,882.19/13,260,657.21
  6. Step 6: Final answer
    x = 10,789,161.96

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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.