Home / 154,018,728.73-212,546,032.48-83,454,283.23

Finding the Fourth Proportional to 154,018,728.73, 212,546,032.48 and 83,454,283.23

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Solution

The fourth proportional to 154,018,728.73, 212,546,032.48 and 83,454,283.23 is: 115,167,012.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,018,728.73 : 212,546,032.48 = 83,454,283.23 : x
  2. Step 2: Convert to fraction form
    154,018,728.73/212,546,032.48 = 83,454,283.23/x
  3. Step 3: Cross multiply
    154,018,728.73x = 212,546,032.48 × 83,454,283.23
  4. Step 4: Simplify right side
    154,018,728.73x = 17,737,876,793,305,968
  5. Step 5: Solve for x
    x = 17,737,876,793,305,968/154,018,728.73
  6. Step 6: Final answer
    x = 115,167,012.09

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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.