Home / 205,805,042.07-308,660,471.55-122,830,223.82

Finding the Fourth Proportional to 205,805,042.07, 308,660,471.55 and 122,830,223.82

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Solution

The fourth proportional to 205,805,042.07, 308,660,471.55 and 122,830,223.82 is: 184,217,230.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,805,042.07 : 308,660,471.55 = 122,830,223.82 : x
  2. Step 2: Convert to fraction form
    205,805,042.07/308,660,471.55 = 122,830,223.82/x
  3. Step 3: Cross multiply
    205,805,042.07x = 308,660,471.55 × 122,830,223.82
  4. Step 4: Simplify right side
    205,805,042.07x = 37,912,834,804,873,240
  5. Step 5: Solve for x
    x = 37,912,834,804,873,240/205,805,042.07
  6. Step 6: Final answer
    x = 184,217,230.17

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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.