Home / 13,260,657.08-18,288,789.27-7,822,900.28

Finding the Fourth Proportional to 13,260,657.08, 18,288,789.27 and 7,822,900.28

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Solution

The fourth proportional to 13,260,657.08, 18,288,789.27 and 7,822,900.28 is: 10,789,161.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260,657.08 : 18,288,789.27 = 7,822,900.28 : x
  2. Step 2: Convert to fraction form
    13,260,657.08/18,288,789.27 = 7,822,900.28/x
  3. Step 3: Cross multiply
    13,260,657.08x = 18,288,789.27 × 7,822,900.28
  4. Step 4: Simplify right side
    13,260,657.08x = 143,071,374,701,144
  5. Step 5: Solve for x
    x = 143,071,374,701,144/13,260,657.08
  6. Step 6: Final answer
    x = 10,789,161.79

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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.