Finding the Fourth Proportional to 19,542,652.80, 29,313,979.20 and 16,407,369.60
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Solution
The fourth proportional to 19,542,652.80, 29,313,979.20 and 16,407,369.60 is: 24,611,054.40
Step by Step Solution
- Step 1: Write the proportion equation
19,542,652.80 : 29,313,979.20 = 16,407,369.60 : x - Step 2: Convert to fraction form
19,542,652.80/29,313,979.20 = 16,407,369.60/x - Step 3: Cross multiply
19,542,652.80x = 29,313,979.20 × 16,407,369.60 - Step 4: Simplify right side
19,542,652.80x = 480,965,291,181,112.31 - Step 5: Solve for x
x = 480,965,291,181,112.31/19,542,652.80 - Step 6: Final answer
x = 24,611,054.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.