Finding the Fourth Proportional to 143,694,311.80, 215,541,467.70 and 83,228,135.80
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Solution
The fourth proportional to 143,694,311.80, 215,541,467.70 and 83,228,135.80 is: 124,842,203.70
Step by Step Solution
- Step 1: Write the proportion equation
143,694,311.80 : 215,541,467.70 = 83,228,135.80 : x - Step 2: Convert to fraction form
143,694,311.80/215,541,467.70 = 83,228,135.80/x - Step 3: Cross multiply
143,694,311.80x = 215,541,467.70 × 83,228,135.80 - Step 4: Simplify right side
143,694,311.80x = 17,939,114,544,266,912 - Step 5: Solve for x
x = 17,939,114,544,266,912/143,694,311.80 - Step 6: Final answer
x = 124,842,203.70
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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.