Finding the Fourth Proportional to 11,178,517.30, 16,771,928.11 and 7,765,005.62
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Solution
The fourth proportional to 11,178,517.30, 16,771,928.11 and 7,765,005.62 is: 11,650,392.67
Step by Step Solution
- Step 1: Write the proportion equation
11,178,517.30 : 16,771,928.11 = 7,765,005.62 : x - Step 2: Convert to fraction form
11,178,517.30/16,771,928.11 = 7,765,005.62/x - Step 3: Cross multiply
11,178,517.30x = 16,771,928.11 × 7,765,005.62 - Step 4: Simplify right side
11,178,517.30x = 130,234,116,032,385.97 - Step 5: Solve for x
x = 130,234,116,032,385.97/11,178,517.30 - Step 6: Final answer
x = 11,650,392.67
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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.