Finding the Fourth Proportional to 78,080,744.01, 107,751,436.74 and 43,275,681.48
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Solution
The fourth proportional to 78,080,744.01, 107,751,436.74 and 43,275,681.48 is: 59,720,445.99
Step by Step Solution
- Step 1: Write the proportion equation
78,080,744.01 : 107,751,436.74 = 43,275,681.48 : x - Step 2: Convert to fraction form
78,080,744.01/107,751,436.74 = 43,275,681.48/x - Step 3: Cross multiply
78,080,744.01x = 107,751,436.74 × 43,275,681.48 - Step 4: Simplify right side
78,080,744.01x = 4,663,016,855,372,609 - Step 5: Solve for x
x = 4,663,016,855,372,609/78,080,744.01 - Step 6: Final answer
x = 59,720,445.99
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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.