Home / 20,776,554.20-31,164,831.30-9,261,999.20

Finding the Fourth Proportional to 20,776,554.20, 31,164,831.30 and 9,261,999.20

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Solution

The fourth proportional to 20,776,554.20, 31,164,831.30 and 9,261,999.20 is: 13,892,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,554.20 : 31,164,831.30 = 9,261,999.20 : x
  2. Step 2: Convert to fraction form
    20,776,554.20/31,164,831.30 = 9,261,999.20/x
  3. Step 3: Cross multiply
    20,776,554.20x = 31,164,831.30 × 9,261,999.20
  4. Step 4: Simplify right side
    20,776,554.20x = 288,648,642,568,734.94
  5. Step 5: Solve for x
    x = 288,648,642,568,734.94/20,776,554.20
  6. Step 6: Final answer
    x = 13,892,998.80

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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.