Finding the Fourth Proportional to 20,773,446.64, 31,160,128.17 and 19,509,317.12
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Solution
The fourth proportional to 20,773,446.64, 31,160,128.17 and 19,509,317.12 is: 29,263,936.43
Step by Step Solution
- Step 1: Write the proportion equation
20,773,446.64 : 31,160,128.17 = 19,509,317.12 : x - Step 2: Convert to fraction form
20,773,446.64/31,160,128.17 = 19,509,317.12/x - Step 3: Cross multiply
20,773,446.64x = 31,160,128.17 × 19,509,317.12 - Step 4: Simplify right side
20,773,446.64x = 607,912,821,968,375.38 - Step 5: Solve for x
x = 607,912,821,968,375.38/20,773,446.64 - Step 6: Final answer
x = 29,263,936.43
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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.