Finding the Fourth Proportional to 315,045,168.95, 434,750,936.38 and 173,913,358.12
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Solution
The fourth proportional to 315,045,168.95, 434,750,936.38 and 173,913,358.12 is: 239,994,142.88
Step by Step Solution
- Step 1: Write the proportion equation
315,045,168.95 : 434,750,936.38 = 173,913,358.12 : x - Step 2: Convert to fraction form
315,045,168.95/434,750,936.38 = 173,913,358.12/x - Step 3: Cross multiply
315,045,168.95x = 434,750,936.38 × 173,913,358.12 - Step 4: Simplify right side
315,045,168.95x = 75,608,995,290,138,624 - Step 5: Solve for x
x = 75,608,995,290,138,624/315,045,168.95 - Step 6: Final answer
x = 239,994,142.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.