Finding the Fourth Proportional to 55,275,618.36, 76,282,613.28 and 30,498,657.96
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Solution
The fourth proportional to 55,275,618.36, 76,282,613.28 and 30,498,657.96 is: 42,089,394.92
Step by Step Solution
- Step 1: Write the proportion equation
55,275,618.36 : 76,282,613.28 = 30,498,657.96 : x - Step 2: Convert to fraction form
55,275,618.36/76,282,613.28 = 30,498,657.96/x - Step 3: Cross multiply
55,275,618.36x = 76,282,613.28 × 30,498,657.96 - Step 4: Simplify right side
55,275,618.36x = 2,326,517,330,721,674 - Step 5: Solve for x
x = 2,326,517,330,721,674/55,275,618.36 - Step 6: Final answer
x = 42,089,394.92
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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.