Home / 38,639,321.37-53,323,542.27-21,236,283.45

Finding the Fourth Proportional to 38,639,321.37, 53,323,542.27 and 21,236,283.45

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Solution

The fourth proportional to 38,639,321.37, 53,323,542.27 and 21,236,283.45 is: 29,306,773.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,639,321.37 : 53,323,542.27 = 21,236,283.45 : x
  2. Step 2: Convert to fraction form
    38,639,321.37/53,323,542.27 = 21,236,283.45/x
  3. Step 3: Cross multiply
    38,639,321.37x = 53,323,542.27 × 21,236,283.45
  4. Step 4: Simplify right side
    38,639,321.37x = 1,132,393,858,203,776.50
  5. Step 5: Solve for x
    x = 1,132,393,858,203,776.50/38,639,321.37
  6. Step 6: Final answer
    x = 29,306,773.98

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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.