Finding the Fourth Proportional to 20,774,218.44, 31,161,962.48 and 7,127,173.38
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Solution
The fourth proportional to 20,774,218.44, 31,161,962.48 and 7,127,173.38 is: 10,690,977.86
Step by Step Solution
- Step 1: Write the proportion equation
20,774,218.44 : 31,161,962.48 = 7,127,173.38 : x - Step 2: Convert to fraction form
20,774,218.44/31,161,962.48 = 7,127,173.38/x - Step 3: Cross multiply
20,774,218.44x = 31,161,962.48 × 7,127,173.38 - Step 4: Simplify right side
20,774,218.44x = 222,096,709,420,378.94 - Step 5: Solve for x
x = 222,096,709,420,378.94/20,774,218.44 - Step 6: Final answer
x = 10,690,977.86
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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.