Home / 621,125,847.20-930,897,514.20-330,132,375.20

Finding the Fourth Proportional to 621,125,847.20, 930,897,514.20 and 330,132,375.20

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Solution

The fourth proportional to 621,125,847.20, 930,897,514.20 and 330,132,375.20 is: 494,778,004.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,125,847.20 : 930,897,514.20 = 330,132,375.20 : x
  2. Step 2: Convert to fraction form
    621,125,847.20/930,897,514.20 = 330,132,375.20/x
  3. Step 3: Cross multiply
    621,125,847.20x = 930,897,514.20 × 330,132,375.20
  4. Step 4: Simplify right side
    621,125,847.20x = 307,319,407,430,621,760
  5. Step 5: Solve for x
    x = 307,319,407,430,621,760/621,125,847.20
  6. Step 6: Final answer
    x = 494,778,004.84

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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.