Finding the Fourth Proportional to 91,008,342.60, 136,512,513.90 and 33,488,711.70
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Solution
The fourth proportional to 91,008,342.60, 136,512,513.90 and 33,488,711.70 is: 50,233,067.55
Step by Step Solution
- Step 1: Write the proportion equation
91,008,342.60 : 136,512,513.90 = 33,488,711.70 : x - Step 2: Convert to fraction form
91,008,342.60/136,512,513.90 = 33,488,711.70/x - Step 3: Cross multiply
91,008,342.60x = 136,512,513.90 × 33,488,711.70 - Step 4: Simplify right side
91,008,342.60x = 4,571,628,221,439,343 - Step 5: Solve for x
x = 4,571,628,221,439,343/91,008,342.60 - Step 6: Final answer
x = 50,233,067.55
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1.5x scale
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.