Finding the Fourth Proportional to 166,224,415.20, 249,336,622.80 and 135,991,327.20
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Solution
The fourth proportional to 166,224,415.20, 249,336,622.80 and 135,991,327.20 is: 203,986,990.80
Step by Step Solution
- Step 1: Write the proportion equation
166,224,415.20 : 249,336,622.80 = 135,991,327.20 : x - Step 2: Convert to fraction form
166,224,415.20/249,336,622.80 = 135,991,327.20/x - Step 3: Cross multiply
166,224,415.20x = 249,336,622.80 × 135,991,327.20 - Step 4: Simplify right side
166,224,415.20x = 33,907,618,254,137,780 - Step 5: Solve for x
x = 33,907,618,254,137,780/166,224,415.20 - Step 6: Final answer
x = 203,986,990.80
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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.