Finding the Fourth Proportional to 10,372,408.40, 15,558,612.60 and 7,852,984.40
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Solution
The fourth proportional to 10,372,408.40, 15,558,612.60 and 7,852,984.40 is: 11,779,476.60
Step by Step Solution
- Step 1: Write the proportion equation
10,372,408.40 : 15,558,612.60 = 7,852,984.40 : x - Step 2: Convert to fraction form
10,372,408.40/15,558,612.60 = 7,852,984.40/x - Step 3: Cross multiply
10,372,408.40x = 15,558,612.60 × 7,852,984.40 - Step 4: Simplify right side
10,372,408.40x = 122,181,542,033,443.44 - Step 5: Solve for x
x = 122,181,542,033,443.44/10,372,408.40 - Step 6: Final answer
x = 11,779,476.60
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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.