Finding the Fourth Proportional to 84,065,281.68, 116,007,456.60 and 49,281,138.96
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Solution
The fourth proportional to 84,065,281.68, 116,007,456.60 and 49,281,138.96 is: 68,006,428.75
Step by Step Solution
- Step 1: Write the proportion equation
84,065,281.68 : 116,007,456.60 = 49,281,138.96 : x - Step 2: Convert to fraction form
84,065,281.68/116,007,456.60 = 49,281,138.96/x - Step 3: Cross multiply
84,065,281.68x = 116,007,456.60 × 49,281,138.96 - Step 4: Simplify right side
84,065,281.68x = 5,716,979,589,100,769 - Step 5: Solve for x
x = 5,716,979,589,100,769/84,065,281.68 - Step 6: Final answer
x = 68,006,428.75
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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.