Finding the Fourth Proportional to 13,317,816.84, 19,977,414.17 and 4,220,880.99
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Solution
The fourth proportional to 13,317,816.84, 19,977,414.17 and 4,220,880.99 is: 6,331,539.82
Step by Step Solution
- Step 1: Write the proportion equation
13,317,816.84 : 19,977,414.17 = 4,220,880.99 : x - Step 2: Convert to fraction form
13,317,816.84/19,977,414.17 = 4,220,880.99/x - Step 3: Cross multiply
13,317,816.84x = 19,977,414.17 × 4,220,880.99 - Step 4: Simplify right side
13,317,816.84x = 84,322,287,678,405.22 - Step 5: Solve for x
x = 84,322,287,678,405.22/13,317,816.84 - Step 6: Final answer
x = 6,331,539.82
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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.