Home / 680,804,367,240.80-1,021,206,550,861.20-412,624,783,445.60

Finding the Fourth Proportional to 680,804,367,240.80, 1,021,206,550,861.20 and 412,624,783,445.60

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Solution

The fourth proportional to 680,804,367,240.80, 1,021,206,550,861.20 and 412,624,783,445.60 is: 618,937,175,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,804,367,240.80 : 1,021,206,550,861.20 = 412,624,783,445.60 : x
  2. Step 2: Convert to fraction form
    680,804,367,240.80/1,021,206,550,861.20 = 412,624,783,445.60/x
  3. Step 3: Cross multiply
    680,804,367,240.80x = 1,021,206,550,861.20 × 412,624,783,445.60
  4. Step 4: Simplify right side
    680,804,367,240.80x = 421,375,131,902,330,716,291,072
  5. Step 5: Solve for x
    x = 421,375,131,902,330,716,291,072/680,804,367,240.80
  6. Step 6: Final answer
    x = 618,937,175,168.40

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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.