Home / 630,018,000.20-945,027,000.30-412,339,766.60

Finding the Fourth Proportional to 630,018,000.20, 945,027,000.30 and 412,339,766.60

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Solution

The fourth proportional to 630,018,000.20, 945,027,000.30 and 412,339,766.60 is: 618,509,649.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,018,000.20 : 945,027,000.30 = 412,339,766.60 : x
  2. Step 2: Convert to fraction form
    630,018,000.20/945,027,000.30 = 412,339,766.60/x
  3. Step 3: Cross multiply
    630,018,000.20x = 945,027,000.30 × 412,339,766.60
  4. Step 4: Simplify right side
    630,018,000.20x = 389,672,212,734,400,128
  5. Step 5: Solve for x
    x = 389,672,212,734,400,128/630,018,000.20
  6. Step 6: Final answer
    x = 618,509,649.90

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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.