Home / 144,236,454.11-198,969,544.73-87,738,473.43

Finding the Fourth Proportional to 144,236,454.11, 198,969,544.73 and 87,738,473.43

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Solution

The fourth proportional to 144,236,454.11, 198,969,544.73 and 87,738,473.43 is: 121,032,399.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,236,454.11 : 198,969,544.73 = 87,738,473.43 : x
  2. Step 2: Convert to fraction form
    144,236,454.11/198,969,544.73 = 87,738,473.43/x
  3. Step 3: Cross multiply
    144,236,454.11x = 198,969,544.73 × 87,738,473.43
  4. Step 4: Simplify right side
    144,236,454.11x = 17,457,284,113,891,648
  5. Step 5: Solve for x
    x = 17,457,284,113,891,648/144,236,454.11
  6. Step 6: Final answer
    x = 121,032,399.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.