Home / 621,777,809.20-933,263,910.60-315,415,850.80

Finding the Fourth Proportional to 621,777,809.20, 933,263,910.60 and 315,415,850.80

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Solution

The fourth proportional to 621,777,809.20, 933,263,910.60 and 315,415,850.80 is: 473,426,722.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,777,809.20 : 933,263,910.60 = 315,415,850.80 : x
  2. Step 2: Convert to fraction form
    621,777,809.20/933,263,910.60 = 315,415,850.80/x
  3. Step 3: Cross multiply
    621,777,809.20x = 933,263,910.60 × 315,415,850.80
  4. Step 4: Simplify right side
    621,777,809.20x = 294,366,230,382,834,176
  5. Step 5: Solve for x
    x = 294,366,230,382,834,176/621,777,809.20
  6. Step 6: Final answer
    x = 473,426,722.58

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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.