Finding the Fourth Proportional to 133,022,509.80, 199,533,764.70 and 129,041,197.80
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Solution
The fourth proportional to 133,022,509.80, 199,533,764.70 and 129,041,197.80 is: 193,561,796.70
Step by Step Solution
- Step 1: Write the proportion equation
133,022,509.80 : 199,533,764.70 = 129,041,197.80 : x - Step 2: Convert to fraction form
133,022,509.80/199,533,764.70 = 129,041,197.80/x - Step 3: Cross multiply
133,022,509.80x = 199,533,764.70 × 129,041,197.80 - Step 4: Simplify right side
133,022,509.80x = 25,748,075,998,431,356 - Step 5: Solve for x
x = 25,748,075,998,431,356/133,022,509.80 - Step 6: Final answer
x = 193,561,796.70
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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.