Finding the Fourth Proportional to 422,611,672.80, 633,917,509.20 and 293,471,509.80
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Solution
The fourth proportional to 422,611,672.80, 633,917,509.20 and 293,471,509.80 is: 440,207,264.70
Step by Step Solution
- Step 1: Write the proportion equation
422,611,672.80 : 633,917,509.20 = 293,471,509.80 : x - Step 2: Convert to fraction form
422,611,672.80/633,917,509.20 = 293,471,509.80/x - Step 3: Cross multiply
422,611,672.80x = 633,917,509.20 × 293,471,509.80 - Step 4: Simplify right side
422,611,672.80x = 186,036,728,513,579,424 - Step 5: Solve for x
x = 186,036,728,513,579,424/422,611,672.80 - Step 6: Final answer
x = 440,207,264.70
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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.