Finding the Fourth Proportional to 32,256,979.20, 48,385,468.80 and 28,972,396.80
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Solution
The fourth proportional to 32,256,979.20, 48,385,468.80 and 28,972,396.80 is: 43,458,595.20
Step by Step Solution
- Step 1: Write the proportion equation
32,256,979.20 : 48,385,468.80 = 28,972,396.80 : x - Step 2: Convert to fraction form
32,256,979.20/48,385,468.80 = 28,972,396.80/x - Step 3: Cross multiply
32,256,979.20x = 48,385,468.80 × 28,972,396.80 - Step 4: Simplify right side
32,256,979.20x = 1,401,843,001,427,619.75 - Step 5: Solve for x
x = 1,401,843,001,427,619.75/32,256,979.20 - Step 6: Final answer
x = 43,458,595.20
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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.