Finding the Fourth Proportional to 103,928,782.68, 143,405,743.26 and 59,867,175.42
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Solution
The fourth proportional to 103,928,782.68, 143,405,743.26 and 59,867,175.42 is: 82,607,498.78
Step by Step Solution
- Step 1: Write the proportion equation
103,928,782.68 : 143,405,743.26 = 59,867,175.42 : x - Step 2: Convert to fraction form
103,928,782.68/143,405,743.26 = 59,867,175.42/x - Step 3: Cross multiply
103,928,782.68x = 143,405,743.26 × 59,867,175.42 - Step 4: Simplify right side
103,928,782.68x = 8,585,296,787,981,902 - Step 5: Solve for x
x = 8,585,296,787,981,902/103,928,782.68 - Step 6: Final answer
x = 82,607,498.78
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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.