Finding the Fourth Proportional to 7,207,022.28, 9,945,689.79 and 3,943,837.40
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Solution
The fourth proportional to 7,207,022.28, 9,945,689.79 and 3,943,837.40 is: 5,442,495.08
Step by Step Solution
- Step 1: Write the proportion equation
7,207,022.28 : 9,945,689.79 = 3,943,837.40 : x - Step 2: Convert to fraction form
7,207,022.28/9,945,689.79 = 3,943,837.40/x - Step 3: Cross multiply
7,207,022.28x = 9,945,689.79 × 3,943,837.40 - Step 4: Simplify right side
7,207,022.28x = 39,224,183,327,661.09 - Step 5: Solve for x
x = 39,224,183,327,661.09/7,207,022.28 - Step 6: Final answer
x = 5,442,495.08
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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.