Finding the Fourth Proportional to 3,107,139.48, 4,286,691.86 and 3,102,349.48
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Solution
The fourth proportional to 3,107,139.48, 4,286,691.86 and 3,102,349.48 is: 4,280,083.45
Step by Step Solution
- Step 1: Write the proportion equation
3,107,139.48 : 4,286,691.86 = 3,102,349.48 : x - Step 2: Convert to fraction form
3,107,139.48/4,286,691.86 = 3,102,349.48/x - Step 3: Cross multiply
3,107,139.48x = 4,286,691.86 × 3,102,349.48 - Step 4: Simplify right side
3,107,139.48x = 13,298,816,262,791.23 - Step 5: Solve for x
x = 13,298,816,262,791.23/3,107,139.48 - Step 6: Final answer
x = 4,280,083.45
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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.