Finding the Fourth Proportional to 21,160,507.26, 29,171,981.42 and 14,192,430.02
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Solution
The fourth proportional to 21,160,507.26, 29,171,981.42 and 14,192,430.02 is: 19,565,755.19
Step by Step Solution
- Step 1: Write the proportion equation
21,160,507.26 : 29,171,981.42 = 14,192,430.02 : x - Step 2: Convert to fraction form
21,160,507.26/29,171,981.42 = 14,192,430.02/x - Step 3: Cross multiply
21,160,507.26x = 29,171,981.42 × 14,192,430.02 - Step 4: Simplify right side
21,160,507.26x = 414,021,304,793,884.75 - Step 5: Solve for x
x = 414,021,304,793,884.75/21,160,507.26 - Step 6: Final answer
x = 19,565,755.19
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.