Finding the Fourth Proportional to 7,082,161.48, 9,774,139.76 and 4,330,461.68
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Solution
The fourth proportional to 7,082,161.48, 9,774,139.76 and 4,330,461.68 is: 5,976,499.94
Step by Step Solution
- Step 1: Write the proportion equation
7,082,161.48 : 9,774,139.76 = 4,330,461.68 : x - Step 2: Convert to fraction form
7,082,161.48/9,774,139.76 = 4,330,461.68/x - Step 3: Cross multiply
7,082,161.48x = 9,774,139.76 × 4,330,461.68 - Step 4: Simplify right side
7,082,161.48x = 42,326,537,685,644.39 - Step 5: Solve for x
x = 42,326,537,685,644.39/7,082,161.48 - Step 6: Final answer
x = 5,976,499.94
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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.