Finding the Fourth Proportional to 138,735,136.92, 208,149,164.62 and 45,366,414.19
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Solution
The fourth proportional to 138,735,136.92, 208,149,164.62 and 45,366,414.19 is: 68,064,813.46
Step by Step Solution
- Step 1: Write the proportion equation
138,735,136.92 : 208,149,164.62 = 45,366,414.19 : x - Step 2: Convert to fraction form
138,735,136.92/208,149,164.62 = 45,366,414.19/x - Step 3: Cross multiply
138,735,136.92x = 208,149,164.62 × 45,366,414.19 - Step 4: Simplify right side
138,735,136.92x = 9,442,981,215,074,584 - Step 5: Solve for x
x = 9,442,981,215,074,584/138,735,136.92 - Step 6: Final answer
x = 68,064,813.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.