Home / 20,678,889.10-31,019,500.05-6,302,425.90

Finding the Fourth Proportional to 20,678,889.10, 31,019,500.05 and 6,302,425.90

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Solution

The fourth proportional to 20,678,889.10, 31,019,500.05 and 6,302,425.90 is: 9,453,994.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,678,889.10 : 31,019,500.05 = 6,302,425.90 : x
  2. Step 2: Convert to fraction form
    20,678,889.10/31,019,500.05 = 6,302,425.90/x
  3. Step 3: Cross multiply
    20,678,889.10x = 31,019,500.05 × 6,302,425.90
  4. Step 4: Simplify right side
    20,678,889.10x = 195,498,100,520,171.31
  5. Step 5: Solve for x
    x = 195,498,100,520,171.31/20,678,889.10
  6. Step 6: Final answer
    x = 9,453,994.34

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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.