Home / 21,203,521.88-31,810,394.25-7,368,470.30

Finding the Fourth Proportional to 21,203,521.88, 31,810,394.25 and 7,368,470.30

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Solution

The fourth proportional to 21,203,521.88, 31,810,394.25 and 7,368,470.30 is: 11,054,481.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,203,521.88 : 31,810,394.25 = 7,368,470.30 : x
  2. Step 2: Convert to fraction form
    21,203,521.88/31,810,394.25 = 7,368,470.30/x
  3. Step 3: Cross multiply
    21,203,521.88x = 31,810,394.25 × 7,368,470.30
  4. Step 4: Simplify right side
    21,203,521.88x = 234,393,945,341,941.78
  5. Step 5: Solve for x
    x = 234,393,945,341,941.78/21,203,521.88
  6. Step 6: Final answer
    x = 11,054,481.74

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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.