Finding the Fourth Proportional to 21,135,441.38, 31,693,169.30 and 8,187,656.18
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Solution
The fourth proportional to 21,135,441.38, 31,693,169.30 and 8,187,656.18 is: 12,277,613.17
Step by Step Solution
- Step 1: Write the proportion equation
21,135,441.38 : 31,693,169.30 = 8,187,656.18 : x - Step 2: Convert to fraction form
21,135,441.38/31,693,169.30 = 8,187,656.18/x - Step 3: Cross multiply
21,135,441.38x = 31,693,169.30 × 8,187,656.18 - Step 4: Simplify right side
21,135,441.38x = 259,492,773,283,527.16 - Step 5: Solve for x
x = 259,492,773,283,527.16/21,135,441.38 - Step 6: Final answer
x = 12,277,613.17
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.