Finding the Fourth Proportional to 19,886,254.19, 27,439,868.79 and 11,182,745.97
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Solution
The fourth proportional to 19,886,254.19, 27,439,868.79 and 11,182,745.97 is: 15,430,411.34
Step by Step Solution
- Step 1: Write the proportion equation
19,886,254.19 : 27,439,868.79 = 11,182,745.97 : x - Step 2: Convert to fraction form
19,886,254.19/27,439,868.79 = 11,182,745.97/x - Step 3: Cross multiply
19,886,254.19x = 27,439,868.79 × 11,182,745.97 - Step 4: Simplify right side
19,886,254.19x = 306,853,082,128,701.31 - Step 5: Solve for x
x = 306,853,082,128,701.31/19,886,254.19 - Step 6: Final answer
x = 15,430,411.34
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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.