Finding the Fourth Proportional to 99,512,512.80, 149,268,769.20 and 56,465,791.80
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Solution
The fourth proportional to 99,512,512.80, 149,268,769.20 and 56,465,791.80 is: 84,698,687.70
Step by Step Solution
- Step 1: Write the proportion equation
99,512,512.80 : 149,268,769.20 = 56,465,791.80 : x - Step 2: Convert to fraction form
99,512,512.80/149,268,769.20 = 56,465,791.80/x - Step 3: Cross multiply
99,512,512.80x = 149,268,769.20 × 56,465,791.80 - Step 4: Simplify right side
99,512,512.80x = 8,428,579,243,889,451 - Step 5: Solve for x
x = 8,428,579,243,889,451/99,512,512.80 - Step 6: Final answer
x = 84,698,687.70
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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.