Finding the Fourth Proportional to 19,886,252.19, 27,439,866.03 and 11,182,743.97
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Solution
The fourth proportional to 19,886,252.19, 27,439,866.03 and 11,182,743.97 is: 15,430,408.58
Step by Step Solution
- Step 1: Write the proportion equation
19,886,252.19 : 27,439,866.03 = 11,182,743.97 : x - Step 2: Convert to fraction form
19,886,252.19/27,439,866.03 = 11,182,743.97/x - Step 3: Cross multiply
19,886,252.19x = 27,439,866.03 × 11,182,743.97 - Step 4: Simplify right side
19,886,252.19x = 306,852,996,295,023 - Step 5: Solve for x
x = 306,852,996,295,023/19,886,252.19 - Step 6: Final answer
x = 15,430,408.58
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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.