Home / 321,019,256.40-481,528,884.60-210,054,375.60

Finding the Fourth Proportional to 321,019,256.40, 481,528,884.60 and 210,054,375.60

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Solution

The fourth proportional to 321,019,256.40, 481,528,884.60 and 210,054,375.60 is: 315,081,563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,019,256.40 : 481,528,884.60 = 210,054,375.60 : x
  2. Step 2: Convert to fraction form
    321,019,256.40/481,528,884.60 = 210,054,375.60/x
  3. Step 3: Cross multiply
    321,019,256.40x = 481,528,884.60 × 210,054,375.60
  4. Step 4: Simplify right side
    321,019,256.40x = 101,147,249,188,017,456
  5. Step 5: Solve for x
    x = 101,147,249,188,017,456/321,019,256.40
  6. Step 6: Final answer
    x = 315,081,563.40

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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.