Finding the Fourth Proportional to 7,661,374.11, 11,489,560.83 and 2,542,428.99
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Solution
The fourth proportional to 7,661,374.11, 11,489,560.83 and 2,542,428.99 is: 3,812,813.75
Step by Step Solution
- Step 1: Write the proportion equation
7,661,374.11 : 11,489,560.83 = 2,542,428.99 : x - Step 2: Convert to fraction form
7,661,374.11/11,489,560.83 = 2,542,428.99/x - Step 3: Cross multiply
7,661,374.11x = 11,489,560.83 × 2,542,428.99 - Step 4: Simplify right side
7,661,374.11x = 29,211,392,536,560.46 - Step 5: Solve for x
x = 29,211,392,536,560.46/7,661,374.11 - Step 6: Final answer
x = 3,812,813.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.