Finding the Fourth Proportional to 19,832,743.80, 27,371,856.96 and 11,131,392.51
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Solution
The fourth proportional to 19,832,743.80, 27,371,856.96 and 11,131,392.51 is: 15,362,820.53
Step by Step Solution
- Step 1: Write the proportion equation
19,832,743.80 : 27,371,856.96 = 11,131,392.51 : x - Step 2: Convert to fraction form
19,832,743.80/27,371,856.96 = 11,131,392.51/x - Step 3: Cross multiply
19,832,743.80x = 27,371,856.96 × 11,131,392.51 - Step 4: Simplify right side
19,832,743.80x = 304,686,883,549,335.38 - Step 5: Solve for x
x = 304,686,883,549,335.38/19,832,743.80 - Step 6: Final answer
x = 15,362,820.53
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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.