Finding the Fourth Proportional to 6,498,989.08, 8,965,781.40 and 3,919,236.28
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Solution
The fourth proportional to 6,498,989.08, 8,965,781.40 and 3,919,236.28 is: 5,406,843.33
Step by Step Solution
- Step 1: Write the proportion equation
6,498,989.08 : 8,965,781.40 = 3,919,236.28 : x - Step 2: Convert to fraction form
6,498,989.08/8,965,781.40 = 3,919,236.28/x - Step 3: Cross multiply
6,498,989.08x = 8,965,781.40 × 3,919,236.28 - Step 4: Simplify right side
6,498,989.08x = 35,139,015,741,429.19 - Step 5: Solve for x
x = 35,139,015,741,429.19/6,498,989.08 - Step 6: Final answer
x = 5,406,843.33
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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.