Home / 620,906,949.75-931,360,425.53-252,355,554.12

Finding the Fourth Proportional to 620,906,949.75, 931,360,425.53 and 252,355,554.12

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Solution

The fourth proportional to 620,906,949.75, 931,360,425.53 and 252,355,554.12 is: 378,533,331.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,906,949.75 : 931,360,425.53 = 252,355,554.12 : x
  2. Step 2: Convert to fraction form
    620,906,949.75/931,360,425.53 = 252,355,554.12/x
  3. Step 3: Cross multiply
    620,906,949.75x = 931,360,425.53 × 252,355,554.12
  4. Step 4: Simplify right side
    620,906,949.75x = 235,033,976,265,405,344
  5. Step 5: Solve for x
    x = 235,033,976,265,405,344/620,906,949.75
  6. Step 6: Final answer
    x = 378,533,331.54

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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.