Home / 1,137,212,217.92-1,705,922,428.32-319,319,007.68

Finding the Fourth Proportional to 1,137,212,217.92, 1,705,922,428.32 and 319,319,007.68

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Solution

The fourth proportional to 1,137,212,217.92, 1,705,922,428.32 and 319,319,007.68 is: 479,007,742.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,212,217.92 : 1,705,922,428.32 = 319,319,007.68 : x
  2. Step 2: Convert to fraction form
    1,137,212,217.92/1,705,922,428.32 = 319,319,007.68/x
  3. Step 3: Cross multiply
    1,137,212,217.92x = 1,705,922,428.32 × 319,319,007.68
  4. Step 4: Simplify right side
    1,137,212,217.92x = 544,733,456,990,198,336
  5. Step 5: Solve for x
    x = 544,733,456,990,198,336/1,137,212,217.92
  6. Step 6: Final answer
    x = 479,007,742.27

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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.