Finding the Fourth Proportional to 5,278,782.18, 7,918,311.66 and 1,684,545.66
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Solution
The fourth proportional to 5,278,782.18, 7,918,311.66 and 1,684,545.66 is: 2,526,862.65
Step by Step Solution
- Step 1: Write the proportion equation
5,278,782.18 : 7,918,311.66 = 1,684,545.66 : x - Step 2: Convert to fraction form
5,278,782.18/7,918,311.66 = 1,684,545.66/x - Step 3: Cross multiply
5,278,782.18x = 7,918,311.66 × 1,684,545.66 - Step 4: Simplify right side
5,278,782.18x = 13,338,757,541,380.39 - Step 5: Solve for x
x = 13,338,757,541,380.39/5,278,782.18 - Step 6: Final answer
x = 2,526,862.65
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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.