Home / 680,804,649,586.80-1,021,206,974,380.20-412,625,065,791.60

Finding the Fourth Proportional to 680,804,649,586.80, 1,021,206,974,380.20 and 412,625,065,791.60

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Solution

The fourth proportional to 680,804,649,586.80, 1,021,206,974,380.20 and 412,625,065,791.60 is: 618,937,598,687.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,804,649,586.80 : 1,021,206,974,380.20 = 412,625,065,791.60 : x
  2. Step 2: Convert to fraction form
    680,804,649,586.80/1,021,206,974,380.20 = 412,625,065,791.60/x
  3. Step 3: Cross multiply
    680,804,649,586.80x = 1,021,206,974,380.20 × 412,625,065,791.60
  4. Step 4: Simplify right side
    680,804,649,586.80x = 421,375,594,990,470,776,750,080
  5. Step 5: Solve for x
    x = 421,375,594,990,470,776,750,080/680,804,649,586.80
  6. Step 6: Final answer
    x = 618,937,598,687.40

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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.