Finding the Fourth Proportional to 212,049,151.80, 318,073,727.70 and 154,653,523.80
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Solution
The fourth proportional to 212,049,151.80, 318,073,727.70 and 154,653,523.80 is: 231,980,285.70
Step by Step Solution
- Step 1: Write the proportion equation
212,049,151.80 : 318,073,727.70 = 154,653,523.80 : x - Step 2: Convert to fraction form
212,049,151.80/318,073,727.70 = 154,653,523.80/x - Step 3: Cross multiply
212,049,151.80x = 318,073,727.70 × 154,653,523.80 - Step 4: Simplify right side
212,049,151.80x = 49,191,222,817,006,672 - Step 5: Solve for x
x = 49,191,222,817,006,672/212,049,151.80 - Step 6: Final answer
x = 231,980,285.70
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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.