Home / 1,078,475,795.70-1,617,805,800.64-378,907,161.39

Finding the Fourth Proportional to 1,078,475,795.70, 1,617,805,800.64 and 378,907,161.39

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Solution

The fourth proportional to 1,078,475,795.70, 1,617,805,800.64 and 378,907,161.39 is: 568,393,102.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,475,795.70 : 1,617,805,800.64 = 378,907,161.39 : x
  2. Step 2: Convert to fraction form
    1,078,475,795.70/1,617,805,800.64 = 378,907,161.39/x
  3. Step 3: Cross multiply
    1,078,475,795.70x = 1,617,805,800.64 × 378,907,161.39
  4. Step 4: Simplify right side
    1,078,475,795.70x = 612,998,203,602,256,384
  5. Step 5: Solve for x
    x = 612,998,203,602,256,384/1,078,475,795.70
  6. Step 6: Final answer
    x = 568,393,102.61

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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.