Finding the Fourth Proportional to 18,509,530.31, 25,542,838.03 and 10,249,415.99
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Solution
The fourth proportional to 18,509,530.31, 25,542,838.03 and 10,249,415.99 is: 14,144,020.30
Step by Step Solution
- Step 1: Write the proportion equation
18,509,530.31 : 25,542,838.03 = 10,249,415.99 : x - Step 2: Convert to fraction form
18,509,530.31/25,542,838.03 = 10,249,415.99/x - Step 3: Cross multiply
18,509,530.31x = 25,542,838.03 × 10,249,415.99 - Step 4: Simplify right side
18,509,530.31x = 261,799,172,534,662.12 - Step 5: Solve for x
x = 261,799,172,534,662.12/18,509,530.31 - Step 6: Final answer
x = 14,144,020.30
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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.