Finding the Fourth Proportional to 902,635,272.99, 1,245,815,316.14 and 585,488,556.05
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Solution
The fourth proportional to 902,635,272.99, 1,245,815,316.14 and 585,488,556.05 is: 808,090,080.64
Step by Step Solution
- Step 1: Write the proportion equation
902,635,272.99 : 1,245,815,316.14 = 585,488,556.05 : x - Step 2: Convert to fraction form
902,635,272.99/1,245,815,316.14 = 585,488,556.05/x - Step 3: Cross multiply
902,635,272.99x = 1,245,815,316.14 × 585,488,556.05 - Step 4: Simplify right side
902,635,272.99x = 729,410,610,542,626,304 - Step 5: Solve for x
x = 729,410,610,542,626,304/902,635,272.99 - Step 6: Final answer
x = 808,090,080.64
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Double scale
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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.