Home / 1,192,691,315,507.90-1,789,288,267,117.80-386,795,416,971.18

Finding the Fourth Proportional to 1,192,691,315,507.90, 1,789,288,267,117.80 and 386,795,416,971.18

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Solution

The fourth proportional to 1,192,691,315,507.90, 1,789,288,267,117.80 and 386,795,416,971.18 is: 580,274,621,239.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,691,315,507.90 : 1,789,288,267,117.80 = 386,795,416,971.18 : x
  2. Step 2: Convert to fraction form
    1,192,691,315,507.90/1,789,288,267,117.80 = 386,795,416,971.18/x
  3. Step 3: Cross multiply
    1,192,691,315,507.90x = 1,789,288,267,117.80 × 386,795,416,971.18
  4. Step 4: Simplify right side
    1,192,691,315,507.90x = 692,088,501,361,469,491,773,440
  5. Step 5: Solve for x
    x = 692,088,501,361,469,491,773,440/1,192,691,315,507.90
  6. Step 6: Final answer
    x = 580,274,621,239.07

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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.