Finding the Fourth Proportional to 18,132,351.60, 27,174,907.80 and 7,340,818.80
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Solution
The fourth proportional to 18,132,351.60, 27,174,907.80 and 7,340,818.80 is: 11,001,665.89
Step by Step Solution
- Step 1: Write the proportion equation
18,132,351.60 : 27,174,907.80 = 7,340,818.80 : x - Step 2: Convert to fraction form
18,132,351.60/27,174,907.80 = 7,340,818.80/x - Step 3: Cross multiply
18,132,351.60x = 27,174,907.80 × 7,340,818.80 - Step 4: Simplify right side
18,132,351.60x = 199,486,074,066,506.62 - Step 5: Solve for x
x = 199,486,074,066,506.62/18,132,351.60 - Step 6: Final answer
x = 11,001,665.89
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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.