Home / 20,880,095.16-31,310,016.93-12,247,016.61

Finding the Fourth Proportional to 20,880,095.16, 31,310,016.93 and 12,247,016.61

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Solution

The fourth proportional to 20,880,095.16, 31,310,016.93 and 12,247,016.61 is: 18,364,585.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,880,095.16 : 31,310,016.93 = 12,247,016.61 : x
  2. Step 2: Convert to fraction form
    20,880,095.16/31,310,016.93 = 12,247,016.61/x
  3. Step 3: Cross multiply
    20,880,095.16x = 31,310,016.93 × 12,247,016.61
  4. Step 4: Simplify right side
    20,880,095.16x = 383,454,297,401,091.19
  5. Step 5: Solve for x
    x = 383,454,297,401,091.19/20,880,095.16
  6. Step 6: Final answer
    x = 18,364,585.72

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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.