Finding the Fourth Proportional to 80,834,231.70, 121,251,347.55 and 39,913,274.70
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Solution
The fourth proportional to 80,834,231.70, 121,251,347.55 and 39,913,274.70 is: 59,869,912.05
Step by Step Solution
- Step 1: Write the proportion equation
80,834,231.70 : 121,251,347.55 = 39,913,274.70 : x - Step 2: Convert to fraction form
80,834,231.70/121,251,347.55 = 39,913,274.70/x - Step 3: Cross multiply
80,834,231.70x = 121,251,347.55 × 39,913,274.70 - Step 4: Simplify right side
80,834,231.70x = 4,839,538,342,508,322 - Step 5: Solve for x
x = 4,839,538,342,508,322/80,834,231.70 - Step 6: Final answer
x = 59,869,912.05
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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.