Finding the Fourth Proportional to 143,342,414.21, 197,806,833.99 and 84,623,994.24
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Solution
The fourth proportional to 143,342,414.21, 197,806,833.99 and 84,623,994.24 is: 116,777,748.39
Step by Step Solution
- Step 1: Write the proportion equation
143,342,414.21 : 197,806,833.99 = 84,623,994.24 : x - Step 2: Convert to fraction form
143,342,414.21/197,806,833.99 = 84,623,994.24/x - Step 3: Cross multiply
143,342,414.21x = 197,806,833.99 × 84,623,994.24 - Step 4: Simplify right side
143,342,414.21x = 16,739,204,380,202,396 - Step 5: Solve for x
x = 16,739,204,380,202,396/143,342,414.21 - Step 6: Final answer
x = 116,777,748.39
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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.