Home / 38,647,245-53,332,883.73-21,243,405.18

Finding the Fourth Proportional to 38,647,245, 53,332,883.73 and 21,243,405.18

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Solution

The fourth proportional to 38,647,245, 53,332,883.73 and 21,243,405.18 is: 29,315,726.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,647,245 : 53,332,883.73 = 21,243,405.18 : x
  2. Step 2: Convert to fraction form
    38,647,245/53,332,883.73 = 21,243,405.18/x
  3. Step 3: Cross multiply
    38,647,245x = 53,332,883.73 × 21,243,405.18
  4. Step 4: Simplify right side
    38,647,245x = 1,132,972,058,494,219.75
  5. Step 5: Solve for x
    x = 1,132,972,058,494,219.75/38,647,245
  6. Step 6: Final answer
    x = 29,315,726.35

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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.