Finding the Fourth Proportional to 7,197,781.19, 9,932,938.79 and 3,934,609.23
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Solution
The fourth proportional to 7,197,781.19, 9,932,938.79 and 3,934,609.23 is: 5,429,761.15
Step by Step Solution
- Step 1: Write the proportion equation
7,197,781.19 : 9,932,938.79 = 3,934,609.23 : x - Step 2: Convert to fraction form
7,197,781.19/9,932,938.79 = 3,934,609.23/x - Step 3: Cross multiply
7,197,781.19x = 9,932,938.79 × 3,934,609.23 - Step 4: Simplify right side
7,197,781.19x = 39,082,232,644,159.03 - Step 5: Solve for x
x = 39,082,232,644,159.03/7,197,781.19 - Step 6: Final answer
x = 5,429,761.15
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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.