Finding the Fourth Proportional to 13,574,318.36, 18,738,597.86 and 8,069,475.33
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Solution
The fourth proportional to 13,574,318.36, 18,738,597.86 and 8,069,475.33 is: 11,139,465.66
Step by Step Solution
- Step 1: Write the proportion equation
13,574,318.36 : 18,738,597.86 = 8,069,475.33 : x - Step 2: Convert to fraction form
13,574,318.36/18,738,597.86 = 8,069,475.33/x - Step 3: Cross multiply
13,574,318.36x = 18,738,597.86 × 8,069,475.33 - Step 4: Simplify right side
13,574,318.36x = 151,210,653,109,713.44 - Step 5: Solve for x
x = 151,210,653,109,713.44/13,574,318.36 - Step 6: Final answer
x = 11,139,465.66
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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.