Home / 20,882,886.90-31,314,999.15-8,099,142.90

Finding the Fourth Proportional to 20,882,886.90, 31,314,999.15 and 8,099,142.90

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Solution

The fourth proportional to 20,882,886.90, 31,314,999.15 and 8,099,142.90 is: 12,145,095.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,882,886.90 : 31,314,999.15 = 8,099,142.90 : x
  2. Step 2: Convert to fraction form
    20,882,886.90/31,314,999.15 = 8,099,142.90/x
  3. Step 3: Cross multiply
    20,882,886.90x = 31,314,999.15 × 8,099,142.90
  4. Step 4: Simplify right side
    20,882,886.90x = 253,624,653,029,228.53
  5. Step 5: Solve for x
    x = 253,624,653,029,228.53/20,882,886.90
  6. Step 6: Final answer
    x = 12,145,095.37

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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.