Finding the Fourth Proportional to 203,317,919.40, 280,580,902.65 and 110,498,431.80
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Solution
The fourth proportional to 203,317,919.40, 280,580,902.65 and 110,498,431.80 is: 152,489,017.33
Step by Step Solution
- Step 1: Write the proportion equation
203,317,919.40 : 280,580,902.65 = 110,498,431.80 : x - Step 2: Convert to fraction form
203,317,919.40/280,580,902.65 = 110,498,431.80/x - Step 3: Cross multiply
203,317,919.40x = 280,580,902.65 × 110,498,431.80 - Step 4: Simplify right side
203,317,919.40x = 31,003,749,735,853,460 - Step 5: Solve for x
x = 31,003,749,735,853,460/203,317,919.40 - Step 6: Final answer
x = 152,489,017.33
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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.