Finding the Fourth Proportional to 28,245,475.52, 38,977,608.36 and 16,022,070.08
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Solution
The fourth proportional to 28,245,475.52, 38,977,608.36 and 16,022,070.08 is: 22,109,805.60
Step by Step Solution
- Step 1: Write the proportion equation
28,245,475.52 : 38,977,608.36 = 16,022,070.08 : x - Step 2: Convert to fraction form
28,245,475.52/38,977,608.36 = 16,022,070.08/x - Step 3: Cross multiply
28,245,475.52x = 38,977,608.36 × 16,022,070.08 - Step 4: Simplify right side
28,245,475.52x = 624,501,972,694,713.88 - Step 5: Solve for x
x = 624,501,972,694,713.88/28,245,475.52 - Step 6: Final answer
x = 22,109,805.60
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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.