Finding the Fourth Proportional to 254,415,711.20, 381,623,566.80 and 84,214,623.20
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Solution
The fourth proportional to 254,415,711.20, 381,623,566.80 and 84,214,623.20 is: 126,321,934.80
Step by Step Solution
- Step 1: Write the proportion equation
254,415,711.20 : 381,623,566.80 = 84,214,623.20 : x - Step 2: Convert to fraction form
254,415,711.20/381,623,566.80 = 84,214,623.20/x - Step 3: Cross multiply
254,415,711.20x = 381,623,566.80 × 84,214,623.20 - Step 4: Simplify right side
254,415,711.20x = 32,138,284,882,302,032 - Step 5: Solve for x
x = 32,138,284,882,302,032/254,415,711.20 - Step 6: Final answer
x = 126,321,934.80
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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.