Home / 278,376,042.16-417,928,997.78-186,670,131.48

Finding the Fourth Proportional to 278,376,042.16, 417,928,997.78 and 186,670,131.48

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Solution

The fourth proportional to 278,376,042.16, 417,928,997.78 and 186,670,131.48 is: 280,249,910.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,376,042.16 : 417,928,997.78 = 186,670,131.48 : x
  2. Step 2: Convert to fraction form
    278,376,042.16/417,928,997.78 = 186,670,131.48/x
  3. Step 3: Cross multiply
    278,376,042.16x = 417,928,997.78 × 186,670,131.48
  4. Step 4: Simplify right side
    278,376,042.16x = 78,014,860,964,897,216
  5. Step 5: Solve for x
    x = 78,014,860,964,897,216/278,376,042.16
  6. Step 6: Final answer
    x = 280,249,910.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.