Finding the Fourth Proportional to 765,896,912.38, 1,148,677,406.97 and 220,519,998.46
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Solution
The fourth proportional to 765,896,912.38, 1,148,677,406.97 and 220,519,998.46 is: 330,731,637.54
Step by Step Solution
- Step 1: Write the proportion equation
765,896,912.38 : 1,148,677,406.97 = 220,519,998.46 : x - Step 2: Convert to fraction form
765,896,912.38/1,148,677,406.97 = 220,519,998.46/x - Step 3: Cross multiply
765,896,912.38x = 1,148,677,406.97 × 220,519,998.46 - Step 4: Simplify right side
765,896,912.38x = 253,306,340,016,061,216 - Step 5: Solve for x
x = 253,306,340,016,061,216/765,896,912.38 - Step 6: Final answer
x = 330,731,637.54
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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.