Home / 139,628,691,870.82-209,472,452,883.33-45,294,273,803.14

Finding the Fourth Proportional to 139,628,691,870.82, 209,472,452,883.33 and 45,294,273,803.14

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Solution

The fourth proportional to 139,628,691,870.82, 209,472,452,883.33 and 45,294,273,803.14 is: 67,950,952,687.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,628,691,870.82 : 209,472,452,883.33 = 45,294,273,803.14 : x
  2. Step 2: Convert to fraction form
    139,628,691,870.82/209,472,452,883.33 = 45,294,273,803.14/x
  3. Step 3: Cross multiply
    139,628,691,870.82x = 209,472,452,883.33 × 45,294,273,803.14
  4. Step 4: Simplify right side
    139,628,691,870.82x = 9,487,902,635,112,890,630,144
  5. Step 5: Solve for x
    x = 9,487,902,635,112,890,630,144/139,628,691,870.82
  6. Step 6: Final answer
    x = 67,950,952,687.37

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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.