Finding the Fourth Proportional to 14,580,431.70, 20,121,606.62 and 8,385,482.62
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Solution
The fourth proportional to 14,580,431.70, 20,121,606.62 and 8,385,482.62 is: 11,572,317.34
Step by Step Solution
- Step 1: Write the proportion equation
14,580,431.70 : 20,121,606.62 = 8,385,482.62 : x - Step 2: Convert to fraction form
14,580,431.70/20,121,606.62 = 8,385,482.62/x - Step 3: Cross multiply
14,580,431.70x = 20,121,606.62 × 8,385,482.62 - Step 4: Simplify right side
14,580,431.70x = 168,729,382,598,486.97 - Step 5: Solve for x
x = 168,729,382,598,486.97/14,580,431.70 - Step 6: Final answer
x = 11,572,317.34
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1.5x scale
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.