Finding the Fourth Proportional to 11,877,728.40, 17,804,782.80 and 5,476,816.80
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Solution
The fourth proportional to 11,877,728.40, 17,804,782.80 and 5,476,816.80 is: 8,209,779.70
Step by Step Solution
- Step 1: Write the proportion equation
11,877,728.40 : 17,804,782.80 = 5,476,816.80 : x - Step 2: Convert to fraction form
11,877,728.40/17,804,782.80 = 5,476,816.80/x - Step 3: Cross multiply
11,877,728.40x = 17,804,782.80 × 5,476,816.80 - Step 4: Simplify right side
11,877,728.40x = 97,513,533,559,391.05 - Step 5: Solve for x
x = 97,513,533,559,391.05/11,877,728.40 - Step 6: Final answer
x = 8,209,779.70
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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.