Finding the Fourth Proportional to 2,103,982.09, 2,903,349.63 and 1,186,243.99
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Solution
The fourth proportional to 2,103,982.09, 2,903,349.63 and 1,186,243.99 is: 1,636,934.59
Step by Step Solution
- Step 1: Write the proportion equation
2,103,982.09 : 2,903,349.63 = 1,186,243.99 : x - Step 2: Convert to fraction form
2,103,982.09/2,903,349.63 = 1,186,243.99/x - Step 3: Cross multiply
2,103,982.09x = 2,903,349.63 × 1,186,243.99 - Step 4: Simplify right side
2,103,982.09x = 3,444,081,049,456.22 - Step 5: Solve for x
x = 3,444,081,049,456.22/2,103,982.09 - Step 6: Final answer
x = 1,636,934.59
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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.