Home / 20,880,083.16-31,309,998.93-12,247,004.61

Finding the Fourth Proportional to 20,880,083.16, 31,309,998.93 and 12,247,004.61

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Solution

The fourth proportional to 20,880,083.16, 31,309,998.93 and 12,247,004.61 is: 18,364,567.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,880,083.16 : 31,309,998.93 = 12,247,004.61 : x
  2. Step 2: Convert to fraction form
    20,880,083.16/31,309,998.93 = 12,247,004.61/x
  3. Step 3: Cross multiply
    20,880,083.16x = 31,309,998.93 × 12,247,004.61
  4. Step 4: Simplify right side
    20,880,083.16x = 383,453,701,234,805.06
  5. Step 5: Solve for x
    x = 383,453,701,234,805.06/20,880,083.16
  6. Step 6: Final answer
    x = 18,364,567.72

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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.