Home / 285,216,375.80-427,824,563.70-265,942,782.20

Finding the Fourth Proportional to 285,216,375.80, 427,824,563.70 and 265,942,782.20

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Solution

The fourth proportional to 285,216,375.80, 427,824,563.70 and 265,942,782.20 is: 398,914,173.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,216,375.80 : 427,824,563.70 = 265,942,782.20 : x
  2. Step 2: Convert to fraction form
    285,216,375.80/427,824,563.70 = 265,942,782.20/x
  3. Step 3: Cross multiply
    285,216,375.80x = 427,824,563.70 × 265,942,782.20
  4. Step 4: Simplify right side
    285,216,375.80x = 113,776,854,763,879,120
  5. Step 5: Solve for x
    x = 113,776,854,763,879,120/285,216,375.80
  6. Step 6: Final answer
    x = 398,914,173.30

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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.