Finding the Fourth Proportional to 16,864,661.49, 23,273,240.12 and 9,129,703.38
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Solution
The fourth proportional to 16,864,661.49, 23,273,240.12 and 9,129,703.38 is: 12,598,994.60
Step by Step Solution
- Step 1: Write the proportion equation
16,864,661.49 : 23,273,240.12 = 9,129,703.38 : x - Step 2: Convert to fraction form
16,864,661.49/23,273,240.12 = 9,129,703.38/x - Step 3: Cross multiply
16,864,661.49x = 23,273,240.12 × 9,129,703.38 - Step 4: Simplify right side
16,864,661.49x = 212,477,778,987,115.62 - Step 5: Solve for x
x = 212,477,778,987,115.62/16,864,661.49 - Step 6: Final answer
x = 12,598,994.60
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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.