Finding the Fourth Proportional to 4,943,878.20, 7,415,817.30 and 2,103,276.60
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Solution
The fourth proportional to 4,943,878.20, 7,415,817.30 and 2,103,276.60 is: 3,154,914.90
Step by Step Solution
- Step 1: Write the proportion equation
4,943,878.20 : 7,415,817.30 = 2,103,276.60 : x - Step 2: Convert to fraction form
4,943,878.20/7,415,817.30 = 2,103,276.60/x - Step 3: Cross multiply
4,943,878.20x = 7,415,817.30 × 2,103,276.60 - Step 4: Simplify right side
4,943,878.20x = 15,597,514,996,965.18 - Step 5: Solve for x
x = 15,597,514,996,965.18/4,943,878.20 - Step 6: Final answer
x = 3,154,914.90
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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.