Finding the Fourth Proportional to 13,634,165.04, 18,821,965.80 and 8,479,187.28
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Solution
The fourth proportional to 13,634,165.04, 18,821,965.80 and 8,479,187.28 is: 11,705,518.64
Step by Step Solution
- Step 1: Write the proportion equation
13,634,165.04 : 18,821,965.80 = 8,479,187.28 : x - Step 2: Convert to fraction form
13,634,165.04/18,821,965.80 = 8,479,187.28/x - Step 3: Cross multiply
13,634,165.04x = 18,821,965.80 × 8,479,187.28 - Step 4: Simplify right side
13,634,165.04x = 159,594,972,995,955.03 - Step 5: Solve for x
x = 159,594,972,995,955.03/13,634,165.04 - Step 6: Final answer
x = 11,705,518.64
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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.