Finding the Fourth Proportional to 19,345,717.62, 26,681,975.91 and 11,999,431.53
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Solution
The fourth proportional to 19,345,717.62, 26,681,975.91 and 11,999,431.53 is: 16,549,840.61
Step by Step Solution
- Step 1: Write the proportion equation
19,345,717.62 : 26,681,975.91 = 11,999,431.53 : x - Step 2: Convert to fraction form
19,345,717.62/26,681,975.91 = 11,999,431.53/x - Step 3: Cross multiply
19,345,717.62x = 26,681,975.91 × 11,999,431.53 - Step 4: Simplify right side
19,345,717.62x = 320,168,543,017,154.44 - Step 5: Solve for x
x = 320,168,543,017,154.44/19,345,717.62 - Step 6: Final answer
x = 16,549,840.61
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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.