Finding the Fourth Proportional to 11,328,892.80, 16,990,977.60 and 4,143,811.20
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Solution
The fourth proportional to 11,328,892.80, 16,990,977.60 and 4,143,811.20 is: 6,214,852.99
Step by Step Solution
- Step 1: Write the proportion equation
11,328,892.80 : 16,990,977.60 = 4,143,811.20 : x - Step 2: Convert to fraction form
11,328,892.80/16,990,977.60 = 4,143,811.20/x - Step 3: Cross multiply
11,328,892.80x = 16,990,977.60 × 4,143,811.20 - Step 4: Simplify right side
11,328,892.80x = 70,407,403,277,829.12 - Step 5: Solve for x
x = 70,407,403,277,829.12/11,328,892.80 - Step 6: Final answer
x = 6,214,852.99
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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.