Finding the Fourth Proportional to 4,738,985.28, 6,532,997.76 and 3,378,496.32
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Solution
The fourth proportional to 4,738,985.28, 6,532,997.76 and 3,378,496.32 is: 4,657,475.72
Step by Step Solution
- Step 1: Write the proportion equation
4,738,985.28 : 6,532,997.76 = 3,378,496.32 : x - Step 2: Convert to fraction form
4,738,985.28/6,532,997.76 = 3,378,496.32/x - Step 3: Cross multiply
4,738,985.28x = 6,532,997.76 × 3,378,496.32 - Step 4: Simplify right side
4,738,985.28x = 22,071,708,890,728.24 - Step 5: Solve for x
x = 22,071,708,890,728.24/4,738,985.28 - Step 6: Final answer
x = 4,657,475.72
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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.