Finding the Fourth Proportional to 201,992,741.74, 278,749,857.65 and 109,173,249.58
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Solution
The fourth proportional to 201,992,741.74, 278,749,857.65 and 109,173,249.58 is: 150,659,016.35
Step by Step Solution
- Step 1: Write the proportion equation
201,992,741.74 : 278,749,857.65 = 109,173,249.58 : x - Step 2: Convert to fraction form
201,992,741.74/278,749,857.65 = 109,173,249.58/x - Step 3: Cross multiply
201,992,741.74x = 278,749,857.65 × 109,173,249.58 - Step 4: Simplify right side
201,992,741.74x = 30,432,027,781,144,220 - Step 5: Solve for x
x = 30,432,027,781,144,220/201,992,741.74 - Step 6: Final answer
x = 150,659,016.35
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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.