Finding the Fourth Proportional to 347,723,425.80, 521,585,138.70 and 156,620,449.80
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Solution
The fourth proportional to 347,723,425.80, 521,585,138.70 and 156,620,449.80 is: 234,930,674.70
Step by Step Solution
- Step 1: Write the proportion equation
347,723,425.80 : 521,585,138.70 = 156,620,449.80 : x - Step 2: Convert to fraction form
347,723,425.80/521,585,138.70 = 156,620,449.80/x - Step 3: Cross multiply
347,723,425.80x = 521,585,138.70 × 156,620,449.80 - Step 4: Simplify right side
347,723,425.80x = 81,690,899,032,189,392 - Step 5: Solve for x
x = 81,690,899,032,189,392/347,723,425.80 - Step 6: Final answer
x = 234,930,674.70
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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.