Finding the Fourth Proportional to 161,716,138.20, 242,574,207.30 and 46,704,432.60
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Solution
The fourth proportional to 161,716,138.20, 242,574,207.30 and 46,704,432.60 is: 70,056,648.90
Step by Step Solution
- Step 1: Write the proportion equation
161,716,138.20 : 242,574,207.30 = 46,704,432.60 : x - Step 2: Convert to fraction form
161,716,138.20/242,574,207.30 = 46,704,432.60/x - Step 3: Cross multiply
161,716,138.20x = 242,574,207.30 × 46,704,432.60 - Step 4: Simplify right side
161,716,138.20x = 11,329,290,715,341,278 - Step 5: Solve for x
x = 11,329,290,715,341,278/161,716,138.20 - Step 6: Final answer
x = 70,056,648.90
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1.5x scale
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.