Finding the Fourth Proportional to 4,785,347.98, 7,171,610.18 and 4,478,891.87
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Solution
The fourth proportional to 4,785,347.98, 7,171,610.18 and 4,478,891.87 is: 6,712,336.63
Step by Step Solution
- Step 1: Write the proportion equation
4,785,347.98 : 7,171,610.18 = 4,478,891.87 : x - Step 2: Convert to fraction form
4,785,347.98/7,171,610.18 = 4,478,891.87/x - Step 3: Cross multiply
4,785,347.98x = 7,171,610.18 × 4,478,891.87 - Step 4: Simplify right side
4,785,347.98x = 32,120,866,505,350.42 - Step 5: Solve for x
x = 32,120,866,505,350.42/4,785,347.98 - Step 6: Final answer
x = 6,712,336.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.