Finding the Fourth Proportional to 129,024,135.20, 193,536,202.80 and 97,173,639.20
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Solution
The fourth proportional to 129,024,135.20, 193,536,202.80 and 97,173,639.20 is: 145,760,458.80
Step by Step Solution
- Step 1: Write the proportion equation
129,024,135.20 : 193,536,202.80 = 97,173,639.20 : x - Step 2: Convert to fraction form
129,024,135.20/193,536,202.80 = 97,173,639.20/x - Step 3: Cross multiply
129,024,135.20x = 193,536,202.80 × 97,173,639.20 - Step 4: Simplify right side
129,024,135.20x = 18,806,617,143,025,232 - Step 5: Solve for x
x = 18,806,617,143,025,232/129,024,135.20 - Step 6: Final answer
x = 145,760,458.80
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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.