Home / 470,198,883.78-648,874,874.79-258,509,316.33

Finding the Fourth Proportional to 470,198,883.78, 648,874,874.79 and 258,509,316.33

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Solution

The fourth proportional to 470,198,883.78, 648,874,874.79 and 258,509,316.33 is: 356,743,084.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,198,883.78 : 648,874,874.79 = 258,509,316.33 : x
  2. Step 2: Convert to fraction form
    470,198,883.78/648,874,874.79 = 258,509,316.33/x
  3. Step 3: Cross multiply
    470,198,883.78x = 648,874,874.79 × 258,509,316.33
  4. Step 4: Simplify right side
    470,198,883.78x = 167,740,200,265,677,248
  5. Step 5: Solve for x
    x = 167,740,200,265,677,248/470,198,883.78
  6. Step 6: Final answer
    x = 356,743,084.79

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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.