Home / 20,801,831.34-31,207,002.71-7,153,205.18

Finding the Fourth Proportional to 20,801,831.34, 31,207,002.71 and 7,153,205.18

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Solution

The fourth proportional to 20,801,831.34, 31,207,002.71 and 7,153,205.18 is: 10,731,271.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801,831.34 : 31,207,002.71 = 7,153,205.18 : x
  2. Step 2: Convert to fraction form
    20,801,831.34/31,207,002.71 = 7,153,205.18/x
  3. Step 3: Cross multiply
    20,801,831.34x = 31,207,002.71 × 7,153,205.18
  4. Step 4: Simplify right side
    20,801,831.34x = 223,230,093,245,644.97
  5. Step 5: Solve for x
    x = 223,230,093,245,644.97/20,801,831.34
  6. Step 6: Final answer
    x = 10,731,271.18

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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.