Home / 278,819,352.40-418,229,028.60-163,858,968.40

Finding the Fourth Proportional to 278,819,352.40, 418,229,028.60 and 163,858,968.40

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Solution

The fourth proportional to 278,819,352.40, 418,229,028.60 and 163,858,968.40 is: 245,788,452.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,819,352.40 : 418,229,028.60 = 163,858,968.40 : x
  2. Step 2: Convert to fraction form
    278,819,352.40/418,229,028.60 = 163,858,968.40/x
  3. Step 3: Cross multiply
    278,819,352.40x = 418,229,028.60 × 163,858,968.40
  4. Step 4: Simplify right side
    278,819,352.40x = 68,530,577,181,330,104
  5. Step 5: Solve for x
    x = 68,530,577,181,330,104/278,819,352.40
  6. Step 6: Final answer
    x = 245,788,452.60

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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.