Finding the Fourth Proportional to 19,958,963.29, 27,543,208.92 and 11,587,109.87
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Solution
The fourth proportional to 19,958,963.29, 27,543,208.92 and 11,587,109.87 is: 15,990,118.49
Step by Step Solution
- Step 1: Write the proportion equation
19,958,963.29 : 27,543,208.92 = 11,587,109.87 : x - Step 2: Convert to fraction form
19,958,963.29/27,543,208.92 = 11,587,109.87/x - Step 3: Cross multiply
19,958,963.29x = 27,543,208.92 × 11,587,109.87 - Step 4: Simplify right side
19,958,963.29x = 319,146,187,953,810.44 - Step 5: Solve for x
x = 319,146,187,953,810.44/19,958,963.29 - Step 6: Final answer
x = 15,990,118.49
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.