Finding the Fourth Proportional to 18,536,358.70, 27,804,538.05 and 17,276,646.70
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Solution
The fourth proportional to 18,536,358.70, 27,804,538.05 and 17,276,646.70 is: 25,914,970.05
Step by Step Solution
- Step 1: Write the proportion equation
18,536,358.70 : 27,804,538.05 = 17,276,646.70 : x - Step 2: Convert to fraction form
18,536,358.70/27,804,538.05 = 17,276,646.70/x - Step 3: Cross multiply
18,536,358.70x = 27,804,538.05 × 17,276,646.70 - Step 4: Simplify right side
18,536,358.70x = 480,369,180,546,556.94 - Step 5: Solve for x
x = 480,369,180,546,556.94/18,536,358.70 - Step 6: Final answer
x = 25,914,970.05
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Double scale
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Similar ratio
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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.