Home / 139,628,691,911.40-209,472,452,944.20-45,294,273,843.72

Finding the Fourth Proportional to 139,628,691,911.40, 209,472,452,944.20 and 45,294,273,843.72

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Solution

The fourth proportional to 139,628,691,911.40, 209,472,452,944.20 and 45,294,273,843.72 is: 67,950,952,748.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,628,691,911.40 : 209,472,452,944.20 = 45,294,273,843.72 : x
  2. Step 2: Convert to fraction form
    139,628,691,911.40/209,472,452,944.20 = 45,294,273,843.72/x
  3. Step 3: Cross multiply
    139,628,691,911.40x = 209,472,452,944.20 × 45,294,273,843.72
  4. Step 4: Simplify right side
    139,628,691,911.40x = 9,487,902,646,370,348,040,192
  5. Step 5: Solve for x
    x = 9,487,902,646,370,348,040,192/139,628,691,911.40
  6. Step 6: Final answer
    x = 67,950,952,748.24

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1.5x scale

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.