Finding the Fourth Proportional to 5,471,991.84, 8,208,869.76 and 1,685,472.96
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Solution
The fourth proportional to 5,471,991.84, 8,208,869.76 and 1,685,472.96 is: 2,528,481.11
Step by Step Solution
- Step 1: Write the proportion equation
5,471,991.84 : 8,208,869.76 = 1,685,472.96 : x - Step 2: Convert to fraction form
5,471,991.84/8,208,869.76 = 1,685,472.96/x - Step 3: Cross multiply
5,471,991.84x = 8,208,869.76 × 1,685,472.96 - Step 4: Simplify right side
5,471,991.84x = 13,835,828,012,641.69 - Step 5: Solve for x
x = 13,835,828,012,641.69/5,471,991.84 - Step 6: Final answer
x = 2,528,481.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.