Home / 312,322,458.45-431,005,033.52-173,102,208.33

Finding the Fourth Proportional to 312,322,458.45, 431,005,033.52 and 173,102,208.33

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Solution

The fourth proportional to 312,322,458.45, 431,005,033.52 and 173,102,208.33 is: 238,881,070.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,322,458.45 : 431,005,033.52 = 173,102,208.33 : x
  2. Step 2: Convert to fraction form
    312,322,458.45/431,005,033.52 = 173,102,208.33/x
  3. Step 3: Cross multiply
    312,322,458.45x = 431,005,033.52 × 173,102,208.33
  4. Step 4: Simplify right side
    312,322,458.45x = 74,607,923,102,792,160
  5. Step 5: Solve for x
    x = 74,607,923,102,792,160/312,322,458.45
  6. Step 6: Final answer
    x = 238,881,070.14

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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.