Home / 285,586,202.55-428,433,071.22-203,501,449.53

Finding the Fourth Proportional to 285,586,202.55, 428,433,071.22 and 203,501,449.53

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Solution

The fourth proportional to 285,586,202.55, 428,433,071.22 and 203,501,449.53 is: 305,290,487.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,586,202.55 : 428,433,071.22 = 203,501,449.53 : x
  2. Step 2: Convert to fraction form
    285,586,202.55/428,433,071.22 = 203,501,449.53/x
  3. Step 3: Cross multiply
    285,586,202.55x = 428,433,071.22 × 203,501,449.53
  4. Step 4: Simplify right side
    285,586,202.55x = 87,186,751,019,859,728
  5. Step 5: Solve for x
    x = 87,186,751,019,859,728/285,586,202.55
  6. Step 6: Final answer
    x = 305,290,487.57

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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.