Finding the Fourth Proportional to 11,118,723.88, 15,353,415.30 and 6,995,629.48
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Solution
The fourth proportional to 11,118,723.88, 15,353,415.30 and 6,995,629.48 is: 9,659,993.89
Step by Step Solution
- Step 1: Write the proportion equation
11,118,723.88 : 15,353,415.30 = 6,995,629.48 : x - Step 2: Convert to fraction form
11,118,723.88/15,353,415.30 = 6,995,629.48/x - Step 3: Cross multiply
11,118,723.88x = 15,353,415.30 × 6,995,629.48 - Step 4: Simplify right side
11,118,723.88x = 107,406,804,691,363.06 - Step 5: Solve for x
x = 107,406,804,691,363.06/11,118,723.88 - Step 6: Final answer
x = 9,659,993.89
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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.