Finding the Fourth Proportional to 11,696,436.16, 16,136,139.34 and 7,830,202.88
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Solution
The fourth proportional to 11,696,436.16, 16,136,139.34 and 7,830,202.88 is: 10,802,371.17
Step by Step Solution
- Step 1: Write the proportion equation
11,696,436.16 : 16,136,139.34 = 7,830,202.88 : x - Step 2: Convert to fraction form
11,696,436.16/16,136,139.34 = 7,830,202.88/x - Step 3: Cross multiply
11,696,436.16x = 16,136,139.34 × 7,830,202.88 - Step 4: Simplify right side
11,696,436.16x = 126,349,244,732,149.30 - Step 5: Solve for x
x = 126,349,244,732,149.30/11,696,436.16 - Step 6: Final answer
x = 10,802,371.17
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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.