Home / 445,844,608.40-668,766,912.60-290,876,412.80

Finding the Fourth Proportional to 445,844,608.40, 668,766,912.60 and 290,876,412.80

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Solution

The fourth proportional to 445,844,608.40, 668,766,912.60 and 290,876,412.80 is: 436,314,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,844,608.40 : 668,766,912.60 = 290,876,412.80 : x
  2. Step 2: Convert to fraction form
    445,844,608.40/668,766,912.60 = 290,876,412.80/x
  3. Step 3: Cross multiply
    445,844,608.40x = 668,766,912.60 × 290,876,412.80
  4. Step 4: Simplify right side
    445,844,608.40x = 194,528,520,536,419,136
  5. Step 5: Solve for x
    x = 194,528,520,536,419,136/445,844,608.40
  6. Step 6: Final answer
    x = 436,314,619.20

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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.