Finding the Fourth Proportional to 3,921,564.66, 5,411,641.37 and 2,179,228.20
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Solution
The fourth proportional to 3,921,564.66, 5,411,641.37 and 2,179,228.20 is: 3,007,269.42
Step by Step Solution
- Step 1: Write the proportion equation
3,921,564.66 : 5,411,641.37 = 2,179,228.20 : x - Step 2: Convert to fraction form
3,921,564.66/5,411,641.37 = 2,179,228.20/x - Step 3: Cross multiply
3,921,564.66x = 5,411,641.37 × 2,179,228.20 - Step 4: Simplify right side
3,921,564.66x = 11,793,201,470,894.49 - Step 5: Solve for x
x = 11,793,201,470,894.49/3,921,564.66 - Step 6: Final answer
x = 3,007,269.42
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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.