Finding the Fourth Proportional to 8,378,115.42, 12,567,173.79 and 2,698,339.74
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Solution
The fourth proportional to 8,378,115.42, 12,567,173.79 and 2,698,339.74 is: 4,047,509.82
Step by Step Solution
- Step 1: Write the proportion equation
8,378,115.42 : 12,567,173.79 = 2,698,339.74 : x - Step 2: Convert to fraction form
8,378,115.42/12,567,173.79 = 2,698,339.74/x - Step 3: Cross multiply
8,378,115.42x = 12,567,173.79 × 2,698,339.74 - Step 4: Simplify right side
8,378,115.42x = 33,910,504,420,035.29 - Step 5: Solve for x
x = 33,910,504,420,035.29/8,378,115.42 - Step 6: Final answer
x = 4,047,509.82
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1.5x scale
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.