Finding the Fourth Proportional to 5,172,586.29, 7,138,166.58 and 2,998,389.42
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Solution
The fourth proportional to 5,172,586.29, 7,138,166.58 and 2,998,389.42 is: 4,137,775.95
Step by Step Solution
- Step 1: Write the proportion equation
5,172,586.29 : 7,138,166.58 = 2,998,389.42 : x - Step 2: Convert to fraction form
5,172,586.29/7,138,166.58 = 2,998,389.42/x - Step 3: Cross multiply
5,172,586.29x = 7,138,166.58 × 2,998,389.42 - Step 4: Simplify right side
5,172,586.29x = 21,403,003,151,669.58 - Step 5: Solve for x
x = 21,403,003,151,669.58/5,172,586.29 - Step 6: Final answer
x = 4,137,775.95
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1.5x scale
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.