Home / 290,146,542.40-435,219,813.60-203,982,241.60

Finding the Fourth Proportional to 290,146,542.40, 435,219,813.60 and 203,982,241.60

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Solution

The fourth proportional to 290,146,542.40, 435,219,813.60 and 203,982,241.60 is: 305,973,362.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,146,542.40 : 435,219,813.60 = 203,982,241.60 : x
  2. Step 2: Convert to fraction form
    290,146,542.40/435,219,813.60 = 203,982,241.60/x
  3. Step 3: Cross multiply
    290,146,542.40x = 435,219,813.60 × 203,982,241.60
  4. Step 4: Simplify right side
    290,146,542.40x = 88,777,113,166,862,176
  5. Step 5: Solve for x
    x = 88,777,113,166,862,176/290,146,542.40
  6. Step 6: Final answer
    x = 305,973,362.40

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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.