Finding the Fourth Proportional to 21,296,452.42, 29,389,117.87 and 11,506,895.03
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Solution
The fourth proportional to 21,296,452.42, 29,389,117.87 and 11,506,895.03 is: 15,879,522.46
Step by Step Solution
- Step 1: Write the proportion equation
21,296,452.42 : 29,389,117.87 = 11,506,895.03 : x - Step 2: Convert to fraction form
21,296,452.42/29,389,117.87 = 11,506,895.03/x - Step 3: Cross multiply
21,296,452.42x = 29,389,117.87 × 11,506,895.03 - Step 4: Simplify right side
21,296,452.42x = 338,177,494,377,517.38 - Step 5: Solve for x
x = 338,177,494,377,517.38/21,296,452.42 - Step 6: Final answer
x = 15,879,522.46
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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.