Finding the Fourth Proportional to 5,428,875.40, 8,147,905.80 and 2,236,292.80
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Solution
The fourth proportional to 5,428,875.40, 8,147,905.80 and 2,236,292.80 is: 3,356,331.05
Step by Step Solution
- Step 1: Write the proportion equation
5,428,875.40 : 8,147,905.80 = 2,236,292.80 : x - Step 2: Convert to fraction form
5,428,875.40/8,147,905.80 = 2,236,292.80/x - Step 3: Cross multiply
5,428,875.40x = 8,147,905.80 × 2,236,292.80 - Step 4: Simplify right side
5,428,875.40x = 18,221,103,075,618.24 - Step 5: Solve for x
x = 18,221,103,075,618.24/5,428,875.40 - Step 6: Final answer
x = 3,356,331.05
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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.