Finding the Fourth Proportional to 19,696,136.64, 27,180,564.84 and 11,438,229.84
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Solution
The fourth proportional to 19,696,136.64, 27,180,564.84 and 11,438,229.84 is: 15,784,696.94
Step by Step Solution
- Step 1: Write the proportion equation
19,696,136.64 : 27,180,564.84 = 11,438,229.84 : x - Step 2: Convert to fraction form
19,696,136.64/27,180,564.84 = 11,438,229.84/x - Step 3: Cross multiply
19,696,136.64x = 27,180,564.84 × 11,438,229.84 - Step 4: Simplify right side
19,696,136.64x = 310,897,547,820,942.81 - Step 5: Solve for x
x = 310,897,547,820,942.81/19,696,136.64 - Step 6: Final answer
x = 15,784,696.94
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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.