Home / 38,458,521.88-53,072,772.16-21,055,972.40

Finding the Fourth Proportional to 38,458,521.88, 53,072,772.16 and 21,055,972.40

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Solution

The fourth proportional to 38,458,521.88, 53,072,772.16 and 21,055,972.40 is: 29,057,248.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,458,521.88 : 53,072,772.16 = 21,055,972.40 : x
  2. Step 2: Convert to fraction form
    38,458,521.88/53,072,772.16 = 21,055,972.40/x
  3. Step 3: Cross multiply
    38,458,521.88x = 53,072,772.16 × 21,055,972.40
  4. Step 4: Simplify right side
    38,458,521.88x = 1,117,498,825,792,448.25
  5. Step 5: Solve for x
    x = 1,117,498,825,792,448.25/38,458,521.88
  6. Step 6: Final answer
    x = 29,057,248.46

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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.