Home / 203,918,559.40-305,835,330.30-74,587,090.60

Finding the Fourth Proportional to 203,918,559.40, 305,835,330.30 and 74,587,090.60

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Solution

The fourth proportional to 203,918,559.40, 305,835,330.30 and 74,587,090.60 is: 111,865,087.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,918,559.40 : 305,835,330.30 = 74,587,090.60 : x
  2. Step 2: Convert to fraction form
    203,918,559.40/305,835,330.30 = 74,587,090.60/x
  3. Step 3: Cross multiply
    203,918,559.40x = 305,835,330.30 × 74,587,090.60
  4. Step 4: Simplify right side
    203,918,559.40x = 22,811,367,489,767,024
  5. Step 5: Solve for x
    x = 22,811,367,489,767,024/203,918,559.40
  6. Step 6: Final answer
    x = 111,865,087.50

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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.