Home / 21,914,285.88-30,234,370.70-12,621,669.87

Finding the Fourth Proportional to 21,914,285.88, 30,234,370.70 and 12,621,669.87

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Solution

The fourth proportional to 21,914,285.88, 30,234,370.70 and 12,621,669.87 is: 17,413,674.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,914,285.88 : 30,234,370.70 = 12,621,669.87 : x
  2. Step 2: Convert to fraction form
    21,914,285.88/30,234,370.70 = 12,621,669.87/x
  3. Step 3: Cross multiply
    21,914,285.88x = 30,234,370.70 × 12,621,669.87
  4. Step 4: Simplify right side
    21,914,285.88x = 381,608,245,639,492.44
  5. Step 5: Solve for x
    x = 381,608,245,639,492.44/21,914,285.88
  6. Step 6: Final answer
    x = 17,413,674.70

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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.