Home / 20,882,887.40-31,314,999.90-8,099,143.40

Finding the Fourth Proportional to 20,882,887.40, 31,314,999.90 and 8,099,143.40

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Solution

The fourth proportional to 20,882,887.40, 31,314,999.90 and 8,099,143.40 is: 12,145,096.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,882,887.40 : 31,314,999.90 = 8,099,143.40 : x
  2. Step 2: Convert to fraction form
    20,882,887.40/31,314,999.90 = 8,099,143.40/x
  3. Step 3: Cross multiply
    20,882,887.40x = 31,314,999.90 × 8,099,143.40
  4. Step 4: Simplify right side
    20,882,887.40x = 253,624,674,761,085.66
  5. Step 5: Solve for x
    x = 253,624,674,761,085.66/20,882,887.40
  6. Step 6: Final answer
    x = 12,145,096.12

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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.