Home / 603,614,712.40-905,422,068.60-419,948,702.80

Finding the Fourth Proportional to 603,614,712.40, 905,422,068.60 and 419,948,702.80

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Solution

The fourth proportional to 603,614,712.40, 905,422,068.60 and 419,948,702.80 is: 629,923,054.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,614,712.40 : 905,422,068.60 = 419,948,702.80 : x
  2. Step 2: Convert to fraction form
    603,614,712.40/905,422,068.60 = 419,948,702.80/x
  3. Step 3: Cross multiply
    603,614,712.40x = 905,422,068.60 × 419,948,702.80
  4. Step 4: Simplify right side
    603,614,712.40x = 380,230,823,195,062,656
  5. Step 5: Solve for x
    x = 380,230,823,195,062,656/603,614,712.40
  6. Step 6: Final answer
    x = 629,923,054.20

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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.