Finding the Fourth Proportional to 19,468,954.69, 26,864,172.72 and 11,207,420.05
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Solution
The fourth proportional to 19,468,954.69, 26,864,172.72 and 11,207,420.05 is: 15,464,521.48
Step by Step Solution
- Step 1: Write the proportion equation
19,468,954.69 : 26,864,172.72 = 11,207,420.05 : x - Step 2: Convert to fraction form
19,468,954.69/26,864,172.72 = 11,207,420.05/x - Step 3: Cross multiply
19,468,954.69x = 26,864,172.72 × 11,207,420.05 - Step 4: Simplify right side
19,468,954.69x = 301,078,067,968,791.06 - Step 5: Solve for x
x = 301,078,067,968,791.06/19,468,954.69 - Step 6: Final answer
x = 15,464,521.48
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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.