Home / 448,479,249.90-672,718,874.85-206,142,153.90

Finding the Fourth Proportional to 448,479,249.90, 672,718,874.85 and 206,142,153.90

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Solution

The fourth proportional to 448,479,249.90, 672,718,874.85 and 206,142,153.90 is: 309,213,230.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,479,249.90 : 672,718,874.85 = 206,142,153.90 : x
  2. Step 2: Convert to fraction form
    448,479,249.90/672,718,874.85 = 206,142,153.90/x
  3. Step 3: Cross multiply
    448,479,249.90x = 672,718,874.85 × 206,142,153.90
  4. Step 4: Simplify right side
    448,479,249.90x = 138,675,717,830,763,552
  5. Step 5: Solve for x
    x = 138,675,717,830,763,552/448,479,249.90
  6. Step 6: Final answer
    x = 309,213,230.85

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Similar ratio
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1.5x scale

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.