Home / 513,621,782.48-770,270,835.44-168,494,986.64

Finding the Fourth Proportional to 513,621,782.48, 770,270,835.44 and 168,494,986.64

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Solution

The fourth proportional to 513,621,782.48, 770,270,835.44 and 168,494,986.64 is: 252,689,388.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,621,782.48 : 770,270,835.44 = 168,494,986.64 : x
  2. Step 2: Convert to fraction form
    513,621,782.48/770,270,835.44 = 168,494,986.64/x
  3. Step 3: Cross multiply
    513,621,782.48x = 770,270,835.44 × 168,494,986.64
  4. Step 4: Simplify right side
    513,621,782.48x = 129,786,774,126,644,432
  5. Step 5: Solve for x
    x = 129,786,774,126,644,432/513,621,782.48
  6. Step 6: Final answer
    x = 252,689,388.48

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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.