Home / 139,628,691,868.32-209,472,452,879.58-45,294,273,800.64

Finding the Fourth Proportional to 139,628,691,868.32, 209,472,452,879.58 and 45,294,273,800.64

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Solution

The fourth proportional to 139,628,691,868.32, 209,472,452,879.58 and 45,294,273,800.64 is: 67,950,952,683.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,628,691,868.32 : 209,472,452,879.58 = 45,294,273,800.64 : x
  2. Step 2: Convert to fraction form
    139,628,691,868.32/209,472,452,879.58 = 45,294,273,800.64/x
  3. Step 3: Cross multiply
    139,628,691,868.32x = 209,472,452,879.58 × 45,294,273,800.64
  4. Step 4: Simplify right side
    139,628,691,868.32x = 9,487,902,634,419,356,172,288
  5. Step 5: Solve for x
    x = 9,487,902,634,419,356,172,288/139,628,691,868.32
  6. Step 6: Final answer
    x = 67,950,952,683.62

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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.