Home / 921,678,508.56-1,382,519,162.64-376,420,042.56

Finding the Fourth Proportional to 921,678,508.56, 1,382,519,162.64 and 376,420,042.56

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Solution

The fourth proportional to 921,678,508.56, 1,382,519,162.64 and 376,420,042.56 is: 564,630,635.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,678,508.56 : 1,382,519,162.64 = 376,420,042.56 : x
  2. Step 2: Convert to fraction form
    921,678,508.56/1,382,519,162.64 = 376,420,042.56/x
  3. Step 3: Cross multiply
    921,678,508.56x = 1,382,519,162.64 × 376,420,042.56
  4. Step 4: Simplify right side
    921,678,508.56x = 520,407,922,040,964,416
  5. Step 5: Solve for x
    x = 520,407,922,040,964,416/921,678,508.56
  6. Step 6: Final answer
    x = 564,630,635.53

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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.