Home / 526,511,513,431.20-789,518,308,933.88-203,965,398,812.64

Finding the Fourth Proportional to 526,511,513,431.20, 789,518,308,933.88 and 203,965,398,812.64

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Solution

The fourth proportional to 526,511,513,431.20, 789,518,308,933.88 and 203,965,398,812.64 is: 305,851,653,085.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,511,513,431.20 : 789,518,308,933.88 = 203,965,398,812.64 : x
  2. Step 2: Convert to fraction form
    526,511,513,431.20/789,518,308,933.88 = 203,965,398,812.64/x
  3. Step 3: Cross multiply
    526,511,513,431.20x = 789,518,308,933.88 × 203,965,398,812.64
  4. Step 4: Simplify right side
    526,511,513,431.20x = 161,034,416,751,579,976,695,808
  5. Step 5: Solve for x
    x = 161,034,416,751,579,976,695,808/526,511,513,431.20
  6. Step 6: Final answer
    x = 305,851,653,085.69

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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.