Finding the Fourth Proportional to 5,698,939.28, 7,864,523.08 and 3,120,597.50
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Solution
The fourth proportional to 5,698,939.28, 7,864,523.08 and 3,120,597.50 is: 4,306,417.36
Step by Step Solution
- Step 1: Write the proportion equation
5,698,939.28 : 7,864,523.08 = 3,120,597.50 : x - Step 2: Convert to fraction form
5,698,939.28/7,864,523.08 = 3,120,597.50/x - Step 3: Cross multiply
5,698,939.28x = 7,864,523.08 × 3,120,597.50 - Step 4: Simplify right side
5,698,939.28x = 24,542,011,015,016.19 - Step 5: Solve for x
x = 24,542,011,015,016.19/5,698,939.28 - Step 6: Final answer
x = 4,306,417.36
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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.