Finding the Fourth Proportional to 20,199,184.13, 27,875,051.15 and 11,497,916.23
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Solution
The fourth proportional to 20,199,184.13, 27,875,051.15 and 11,497,916.23 is: 15,867,225.17
Step by Step Solution
- Step 1: Write the proportion equation
20,199,184.13 : 27,875,051.15 = 11,497,916.23 : x - Step 2: Convert to fraction form
20,199,184.13/27,875,051.15 = 11,497,916.23/x - Step 3: Cross multiply
20,199,184.13x = 27,875,051.15 × 11,497,916.23 - Step 4: Simplify right side
20,199,184.13x = 320,505,002,902,487.94 - Step 5: Solve for x
x = 320,505,002,902,487.94/20,199,184.13 - Step 6: Final answer
x = 15,867,225.17
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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.