Home / 415,136,662.20-622,704,993.30-262,459,567.80

Finding the Fourth Proportional to 415,136,662.20, 622,704,993.30 and 262,459,567.80

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Solution

The fourth proportional to 415,136,662.20, 622,704,993.30 and 262,459,567.80 is: 393,689,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,136,662.20 : 622,704,993.30 = 262,459,567.80 : x
  2. Step 2: Convert to fraction form
    415,136,662.20/622,704,993.30 = 262,459,567.80/x
  3. Step 3: Cross multiply
    415,136,662.20x = 622,704,993.30 × 262,459,567.80
  4. Step 4: Simplify right side
    415,136,662.20x = 163,434,883,408,419,904
  5. Step 5: Solve for x
    x = 163,434,883,408,419,904/415,136,662.20
  6. Step 6: Final answer
    x = 393,689,351.70

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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.