Home / 21,185,670.54-31,738,396.23-12,523,838.34

Finding the Fourth Proportional to 21,185,670.54, 31,738,396.23 and 12,523,838.34

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Solution

The fourth proportional to 21,185,670.54, 31,738,396.23 and 12,523,838.34 is: 18,762,046.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185,670.54 : 31,738,396.23 = 12,523,838.34 : x
  2. Step 2: Convert to fraction form
    21,185,670.54/31,738,396.23 = 12,523,838.34/x
  3. Step 3: Cross multiply
    21,185,670.54x = 31,738,396.23 × 12,523,838.34
  4. Step 4: Simplify right side
    21,185,670.54x = 397,486,543,555,385.44
  5. Step 5: Solve for x
    x = 397,486,543,555,385.44/21,185,670.54
  6. Step 6: Final answer
    x = 18,762,046.87

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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.