Finding the Fourth Proportional to 5,218,473.70, 7,201,545.87 and 2,926,585.18
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Solution
The fourth proportional to 5,218,473.70, 7,201,545.87 and 2,926,585.18 is: 4,038,716.80
Step by Step Solution
- Step 1: Write the proportion equation
5,218,473.70 : 7,201,545.87 = 2,926,585.18 : x - Step 2: Convert to fraction form
5,218,473.70/7,201,545.87 = 2,926,585.18/x - Step 3: Cross multiply
5,218,473.70x = 7,201,545.87 × 2,926,585.18 - Step 4: Simplify right side
5,218,473.70x = 21,075,937,416,232.21 - Step 5: Solve for x
x = 21,075,937,416,232.21/5,218,473.70 - Step 6: Final answer
x = 4,038,716.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.