Finding the Fourth Proportional to 27,679,279.16, 38,198,565.68 and 15,918,556.70
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Solution
The fourth proportional to 27,679,279.16, 38,198,565.68 and 15,918,556.70 is: 21,968,275.62
Step by Step Solution
- Step 1: Write the proportion equation
27,679,279.16 : 38,198,565.68 = 15,918,556.70 : x - Step 2: Convert to fraction form
27,679,279.16/38,198,565.68 = 15,918,556.70/x - Step 3: Cross multiply
27,679,279.16x = 38,198,565.68 × 15,918,556.70 - Step 4: Simplify right side
27,679,279.16x = 608,066,033,365,168.38 - Step 5: Solve for x
x = 608,066,033,365,168.38/27,679,279.16 - Step 6: Final answer
x = 21,968,275.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.