Finding the Fourth Proportional to 18,027,420.68, 27,022,235.34 and 6,660,619.40
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Solution
The fourth proportional to 18,027,420.68, 27,022,235.34 and 6,660,619.40 is: 9,983,947.68
Step by Step Solution
- Step 1: Write the proportion equation
18,027,420.68 : 27,022,235.34 = 6,660,619.40 : x - Step 2: Convert to fraction form
18,027,420.68/27,022,235.34 = 6,660,619.40/x - Step 3: Cross multiply
18,027,420.68x = 27,022,235.34 × 6,660,619.40 - Step 4: Simplify right side
18,027,420.68x = 179,984,824,936,969.59 - Step 5: Solve for x
x = 179,984,824,936,969.59/18,027,420.68 - Step 6: Final answer
x = 9,983,947.68
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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.