Finding the Fourth Proportional to 19,738,130.66, 27,211,833.05 and 13,849,764.38
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Solution
The fourth proportional to 19,738,130.66, 27,211,833.05 and 13,849,764.38 is: 19,093,878.88
Step by Step Solution
- Step 1: Write the proportion equation
19,738,130.66 : 27,211,833.05 = 13,849,764.38 : x - Step 2: Convert to fraction form
19,738,130.66/27,211,833.05 = 13,849,764.38/x - Step 3: Cross multiply
19,738,130.66x = 27,211,833.05 × 13,849,764.38 - Step 4: Simplify right side
19,738,130.66x = 376,877,476,090,396.81 - Step 5: Solve for x
x = 376,877,476,090,396.81/19,738,130.66 - Step 6: Final answer
x = 19,093,878.88
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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.