Home / 31,835,853.20-43,966,826.52-21,938,469.68

Finding the Fourth Proportional to 31,835,853.20, 43,966,826.52 and 21,938,469.68

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Solution

The fourth proportional to 31,835,853.20, 43,966,826.52 and 21,938,469.68 is: 30,298,069.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,835,853.20 : 43,966,826.52 = 21,938,469.68 : x
  2. Step 2: Convert to fraction form
    31,835,853.20/43,966,826.52 = 21,938,469.68/x
  3. Step 3: Cross multiply
    31,835,853.20x = 43,966,826.52 × 21,938,469.68
  4. Step 4: Simplify right side
    31,835,853.20x = 964,564,890,534,840
  5. Step 5: Solve for x
    x = 964,564,890,534,840/31,835,853.20
  6. Step 6: Final answer
    x = 30,298,069.43

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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.