Finding the Fourth Proportional to 990,664,791.14, 1,367,118,291.26 and 544,635,743.08
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Solution
The fourth proportional to 990,664,791.14, 1,367,118,291.26 and 544,635,743.08 is: 751,597,808.96
Step by Step Solution
- Step 1: Write the proportion equation
990,664,791.14 : 1,367,118,291.26 = 544,635,743.08 : x - Step 2: Convert to fraction form
990,664,791.14/1,367,118,291.26 = 544,635,743.08/x - Step 3: Cross multiply
990,664,791.14x = 1,367,118,291.26 × 544,635,743.08 - Step 4: Simplify right side
990,664,791.14x = 744,581,486,438,649,984 - Step 5: Solve for x
x = 744,581,486,438,649,984/990,664,791.14 - Step 6: Final answer
x = 751,597,808.96
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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.