Finding the Fourth Proportional to 18,588,538.70, 27,893,721.18 and 7,805,010.32
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Solution
The fourth proportional to 18,588,538.70, 27,893,721.18 and 7,805,010.32 is: 11,712,097.72
Step by Step Solution
- Step 1: Write the proportion equation
18,588,538.70 : 27,893,721.18 = 7,805,010.32 : x - Step 2: Convert to fraction form
18,588,538.70/27,893,721.18 = 7,805,010.32/x - Step 3: Cross multiply
18,588,538.70x = 27,893,721.18 × 7,805,010.32 - Step 4: Simplify right side
18,588,538.70x = 217,710,781,623,601.03 - Step 5: Solve for x
x = 217,710,781,623,601.03/18,588,538.70 - Step 6: Final answer
x = 11,712,097.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.