Finding the Fourth Proportional to 5,196,709.20, 7,790,916.60 and 2,202,430.80
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Solution
The fourth proportional to 5,196,709.20, 7,790,916.60 and 2,202,430.80 is: 3,301,888.56
Step by Step Solution
- Step 1: Write the proportion equation
5,196,709.20 : 7,790,916.60 = 2,202,430.80 : x - Step 2: Convert to fraction form
5,196,709.20/7,790,916.60 = 2,202,430.80/x - Step 3: Cross multiply
5,196,709.20x = 7,790,916.60 × 2,202,430.80 - Step 4: Simplify right side
5,196,709.20x = 17,158,954,680,071.28 - Step 5: Solve for x
x = 17,158,954,680,071.28/5,196,709.20 - Step 6: Final answer
x = 3,301,888.56
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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.