Home / 1,196,809,638.75-1,795,030,396.11-399,140,779.35

Finding the Fourth Proportional to 1,196,809,638.75, 1,795,030,396.11 and 399,140,779.35

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Solution

The fourth proportional to 1,196,809,638.75, 1,795,030,396.11 and 399,140,779.35 is: 598,649,783.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196,809,638.75 : 1,795,030,396.11 = 399,140,779.35 : x
  2. Step 2: Convert to fraction form
    1,196,809,638.75/1,795,030,396.11 = 399,140,779.35/x
  3. Step 3: Cross multiply
    1,196,809,638.75x = 1,795,030,396.11 × 399,140,779.35
  4. Step 4: Simplify right side
    1,196,809,638.75x = 716,469,831,260,284,672
  5. Step 5: Solve for x
    x = 716,469,831,260,284,672/1,196,809,638.75
  6. Step 6: Final answer
    x = 598,649,783.61

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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.