Finding the Fourth Proportional to 11,657,251.80, 17,485,877.70 and 6,618,403.80
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Solution
The fourth proportional to 11,657,251.80, 17,485,877.70 and 6,618,403.80 is: 9,927,605.70
Step by Step Solution
- Step 1: Write the proportion equation
11,657,251.80 : 17,485,877.70 = 6,618,403.80 : x - Step 2: Convert to fraction form
11,657,251.80/17,485,877.70 = 6,618,403.80/x - Step 3: Cross multiply
11,657,251.80x = 17,485,877.70 × 6,618,403.80 - Step 4: Simplify right side
11,657,251.80x = 115,728,599,416,015.25 - Step 5: Solve for x
x = 115,728,599,416,015.25/11,657,251.80 - Step 6: Final answer
x = 9,927,605.70
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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.