Finding the Fourth Proportional to 18,314,107.20, 27,471,160.80 and 5,533,279.20
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Solution
The fourth proportional to 18,314,107.20, 27,471,160.80 and 5,533,279.20 is: 8,299,918.80
Step by Step Solution
- Step 1: Write the proportion equation
18,314,107.20 : 27,471,160.80 = 5,533,279.20 : x - Step 2: Convert to fraction form
18,314,107.20/27,471,160.80 = 5,533,279.20/x - Step 3: Cross multiply
18,314,107.20x = 27,471,160.80 × 5,533,279.20 - Step 4: Simplify right side
18,314,107.20x = 152,005,602,654,495.38 - Step 5: Solve for x
x = 152,005,602,654,495.38/18,314,107.20 - Step 6: Final answer
x = 8,299,918.80
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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.