Finding the Fourth Proportional to 19,835,149.48, 27,371,005.40 and 11,131,640.58
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Solution
The fourth proportional to 19,835,149.48, 27,371,005.40 and 11,131,640.58 is: 15,360,821.69
Step by Step Solution
- Step 1: Write the proportion equation
19,835,149.48 : 27,371,005.40 = 11,131,640.58 : x - Step 2: Convert to fraction form
19,835,149.48/27,371,005.40 = 11,131,640.58/x - Step 3: Cross multiply
19,835,149.48x = 27,371,005.40 × 11,131,640.58 - Step 4: Simplify right side
19,835,149.48x = 304,684,194,426,039.12 - Step 5: Solve for x
x = 304,684,194,426,039.12/19,835,149.48 - Step 6: Final answer
x = 15,360,821.69
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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.