Finding the Fourth Proportional to 2,127,472,064.24, 3,188,669,193.39 and 990,178,376.99
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Solution
The fourth proportional to 2,127,472,064.24, 3,188,669,193.39 and 990,178,376.99 is: 1,484,085,896.94
Step by Step Solution
- Step 1: Write the proportion equation
2,127,472,064.24 : 3,188,669,193.39 = 990,178,376.99 : x - Step 2: Convert to fraction form
2,127,472,064.24/3,188,669,193.39 = 990,178,376.99/x - Step 3: Cross multiply
2,127,472,064.24x = 3,188,669,193.39 × 990,178,376.99 - Step 4: Simplify right side
2,127,472,064.24x = 3,157,351,286,668,922,368 - Step 5: Solve for x
x = 3,157,351,286,668,922,368/2,127,472,064.24 - Step 6: Final answer
x = 1,484,085,896.94
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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.