Home / 312,265,657.51-431,122,481.85-200,949,901.18

Finding the Fourth Proportional to 312,265,657.51, 431,122,481.85 and 200,949,901.18

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Solution

The fourth proportional to 312,265,657.51, 431,122,481.85 and 200,949,901.18 is: 277,436,913.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,265,657.51 : 431,122,481.85 = 200,949,901.18 : x
  2. Step 2: Convert to fraction form
    312,265,657.51/431,122,481.85 = 200,949,901.18/x
  3. Step 3: Cross multiply
    312,265,657.51x = 431,122,481.85 × 200,949,901.18
  4. Step 4: Simplify right side
    312,265,657.51x = 86,634,020,124,233,856
  5. Step 5: Solve for x
    x = 86,634,020,124,233,856/312,265,657.51
  6. Step 6: Final answer
    x = 277,436,913.22

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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.