Finding the Fourth Proportional to 3,917,812.99, 5,406,285.53 and 2,198,601.35
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Solution
The fourth proportional to 3,917,812.99, 5,406,285.53 and 2,198,601.35 is: 3,033,903.54
Step by Step Solution
- Step 1: Write the proportion equation
3,917,812.99 : 5,406,285.53 = 2,198,601.35 : x - Step 2: Convert to fraction form
3,917,812.99/5,406,285.53 = 2,198,601.35/x - Step 3: Cross multiply
3,917,812.99x = 5,406,285.53 × 2,198,601.35 - Step 4: Simplify right side
3,917,812.99x = 11,886,266,669,411.29 - Step 5: Solve for x
x = 11,886,266,669,411.29/3,917,812.99 - Step 6: Final answer
x = 3,033,903.54
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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.