Finding the Fourth Proportional to 15,189,474.42, 20,961,671.58 and 8,313,808.86
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Solution
The fourth proportional to 15,189,474.42, 20,961,671.58 and 8,313,808.86 is: 11,473,163.99
Step by Step Solution
- Step 1: Write the proportion equation
15,189,474.42 : 20,961,671.58 = 8,313,808.86 : x - Step 2: Convert to fraction form
15,189,474.42/20,961,671.58 = 8,313,808.86/x - Step 3: Cross multiply
15,189,474.42x = 20,961,671.58 × 8,313,808.86 - Step 4: Simplify right side
15,189,474.42x = 174,271,330,902,214.19 - Step 5: Solve for x
x = 174,271,330,902,214.19/15,189,474.42 - Step 6: Final answer
x = 11,473,163.99
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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.