Finding the Fourth Proportional to 156,702,496.40, 235,053,744.60 and 131,620,230.80
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Solution
The fourth proportional to 156,702,496.40, 235,053,744.60 and 131,620,230.80 is: 197,430,346.20
Step by Step Solution
- Step 1: Write the proportion equation
156,702,496.40 : 235,053,744.60 = 131,620,230.80 : x - Step 2: Convert to fraction form
156,702,496.40/235,053,744.60 = 131,620,230.80/x - Step 3: Cross multiply
156,702,496.40x = 235,053,744.60 × 131,620,230.80 - Step 4: Simplify right side
156,702,496.40x = 30,937,828,114,656,252 - Step 5: Solve for x
x = 30,937,828,114,656,252/156,702,496.40 - Step 6: Final answer
x = 197,430,346.20
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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.