Finding the Fourth Proportional to 5,390,243.40, 8,085,365.10 and 2,197,660.80
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Solution
The fourth proportional to 5,390,243.40, 8,085,365.10 and 2,197,660.80 is: 3,296,491.20
Step by Step Solution
- Step 1: Write the proportion equation
5,390,243.40 : 8,085,365.10 = 2,197,660.80 : x - Step 2: Convert to fraction form
5,390,243.40/8,085,365.10 = 2,197,660.80/x - Step 3: Cross multiply
5,390,243.40x = 8,085,365.10 × 2,197,660.80 - Step 4: Simplify right side
5,390,243.40x = 17,768,889,933,958.08 - Step 5: Solve for x
x = 17,768,889,933,958.08/5,390,243.40 - Step 6: Final answer
x = 3,296,491.20
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1.5x scale
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.