Finding the Fourth Proportional to 13,605,478.96, 18,775,559.28 and 7,493,907.48
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Solution
The fourth proportional to 13,605,478.96, 18,775,559.28 and 7,493,907.48 is: 10,341,591.39
Step by Step Solution
- Step 1: Write the proportion equation
13,605,478.96 : 18,775,559.28 = 7,493,907.48 : x - Step 2: Convert to fraction form
13,605,478.96/18,775,559.28 = 7,493,907.48/x - Step 3: Cross multiply
13,605,478.96x = 18,775,559.28 × 7,493,907.48 - Step 4: Simplify right side
13,605,478.96x = 140,702,304,129,575.44 - Step 5: Solve for x
x = 140,702,304,129,575.44/13,605,478.96 - Step 6: Final answer
x = 10,341,591.39
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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.