Finding the Fourth Proportional to 19,738,128.16, 27,211,829.61 and 13,849,761.88
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Solution
The fourth proportional to 19,738,128.16, 27,211,829.61 and 13,849,761.88 is: 19,093,875.44
Step by Step Solution
- Step 1: Write the proportion equation
19,738,128.16 : 27,211,829.61 = 13,849,761.88 : x - Step 2: Convert to fraction form
19,738,128.16/27,211,829.61 = 13,849,761.88/x - Step 3: Cross multiply
19,738,128.16x = 27,211,829.61 × 13,849,761.88 - Step 4: Simplify right side
19,738,128.16x = 376,877,360,417,633.25 - Step 5: Solve for x
x = 376,877,360,417,633.25/19,738,128.16 - Step 6: Final answer
x = 19,093,875.44
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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.