Home / 455,521,837.66-628,620,742.20-246,678,340.48

Finding the Fourth Proportional to 455,521,837.66, 628,620,742.20 and 246,678,340.48

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Solution

The fourth proportional to 455,521,837.66, 628,620,742.20 and 246,678,340.48 is: 340,416,438.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,521,837.66 : 628,620,742.20 = 246,678,340.48 : x
  2. Step 2: Convert to fraction form
    455,521,837.66/628,620,742.20 = 246,678,340.48/x
  3. Step 3: Cross multiply
    455,521,837.66x = 628,620,742.20 × 246,678,340.48
  4. Step 4: Simplify right side
    455,521,837.66x = 155,067,121,476,555,392
  5. Step 5: Solve for x
    x = 155,067,121,476,555,392/455,521,837.66
  6. Step 6: Final answer
    x = 340,416,438.15

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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.