Finding the Fourth Proportional to 15,189,247.68, 20,961,187.16 and 8,314,165.32
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Solution
The fourth proportional to 15,189,247.68, 20,961,187.16 and 8,314,165.32 is: 11,473,562.02
Step by Step Solution
- Step 1: Write the proportion equation
15,189,247.68 : 20,961,187.16 = 8,314,165.32 : x - Step 2: Convert to fraction form
15,189,247.68/20,961,187.16 = 8,314,165.32/x - Step 3: Cross multiply
15,189,247.68x = 20,961,187.16 × 8,314,165.32 - Step 4: Simplify right side
15,189,247.68x = 174,274,775,351,701.31 - Step 5: Solve for x
x = 174,274,775,351,701.31/15,189,247.68 - Step 6: Final answer
x = 11,473,562.02
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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.