Home / 18,778,216.73-25,900,998.87-13,208,276.82

Finding the Fourth Proportional to 18,778,216.73, 25,900,998.87 and 13,208,276.82

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Solution

The fourth proportional to 18,778,216.73, 25,900,998.87 and 13,208,276.82 is: 18,218,320.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,778,216.73 : 25,900,998.87 = 13,208,276.82 : x
  2. Step 2: Convert to fraction form
    18,778,216.73/25,900,998.87 = 13,208,276.82/x
  3. Step 3: Cross multiply
    18,778,216.73x = 25,900,998.87 × 13,208,276.82
  4. Step 4: Simplify right side
    18,778,216.73x = 342,107,562,989,467.19
  5. Step 5: Solve for x
    x = 342,107,562,989,467.19/18,778,216.73
  6. Step 6: Final answer
    x = 18,218,320.08

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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.