Home / 21,420,056.73-29,558,849.23-11,630,276.85

Finding the Fourth Proportional to 21,420,056.73, 29,558,849.23 and 11,630,276.85

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Solution

The fourth proportional to 21,420,056.73, 29,558,849.23 and 11,630,276.85 is: 16,049,331.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,420,056.73 : 29,558,849.23 = 11,630,276.85 : x
  2. Step 2: Convert to fraction form
    21,420,056.73/29,558,849.23 = 11,630,276.85/x
  3. Step 3: Cross multiply
    21,420,056.73x = 29,558,849.23 × 11,630,276.85
  4. Step 4: Simplify right side
    21,420,056.73x = 343,777,599,912,309.31
  5. Step 5: Solve for x
    x = 343,777,599,912,309.31/21,420,056.73
  6. Step 6: Final answer
    x = 16,049,331.91

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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.