Finding the Fourth Proportional to 311,011,244.35, 429,192,615.76 and 169,882,410.75
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Solution
The fourth proportional to 311,011,244.35, 429,192,615.76 and 169,882,410.75 is: 234,436,141.99
Step by Step Solution
- Step 1: Write the proportion equation
311,011,244.35 : 429,192,615.76 = 169,882,410.75 : x - Step 2: Convert to fraction form
311,011,244.35/429,192,615.76 = 169,882,410.75/x - Step 3: Cross multiply
311,011,244.35x = 429,192,615.76 × 169,882,410.75 - Step 4: Simplify right side
311,011,244.35x = 72,912,276,241,407,248 - Step 5: Solve for x
x = 72,912,276,241,407,248/311,011,244.35 - Step 6: Final answer
x = 234,436,141.99
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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.