Home / 21,073,455.40-31,594,436.70-11,499,644.20

Finding the Fourth Proportional to 21,073,455.40, 31,594,436.70 and 11,499,644.20

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Solution

The fourth proportional to 21,073,455.40, 31,594,436.70 and 11,499,644.20 is: 17,240,873.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073,455.40 : 31,594,436.70 = 11,499,644.20 : x
  2. Step 2: Convert to fraction form
    21,073,455.40/31,594,436.70 = 11,499,644.20/x
  3. Step 3: Cross multiply
    21,073,455.40x = 31,594,436.70 × 11,499,644.20
  4. Step 4: Simplify right side
    21,073,455.40x = 363,324,780,749,422.12
  5. Step 5: Solve for x
    x = 363,324,780,749,422.12/21,073,455.40
  6. Step 6: Final answer
    x = 17,240,873.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.