Finding the Fourth Proportional to 13,103,614.16, 18,082,193.18 and 7,222,991.18
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Solution
The fourth proportional to 13,103,614.16, 18,082,193.18 and 7,222,991.18 is: 9,967,289.95
Step by Step Solution
- Step 1: Write the proportion equation
13,103,614.16 : 18,082,193.18 = 7,222,991.18 : x - Step 2: Convert to fraction form
13,103,614.16/18,082,193.18 = 7,222,991.18/x - Step 3: Cross multiply
13,103,614.16x = 18,082,193.18 × 7,222,991.18 - Step 4: Simplify right side
13,103,614.16x = 130,607,521,727,670.23 - Step 5: Solve for x
x = 130,607,521,727,670.23/13,103,614.16 - Step 6: Final answer
x = 9,967,289.95
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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.