Finding the Fourth Proportional to 2,127,472,065.24, 3,188,669,194.89 and 990,178,377.99
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Solution
The fourth proportional to 2,127,472,065.24, 3,188,669,194.89 and 990,178,377.99 is: 1,484,085,898.44
Step by Step Solution
- Step 1: Write the proportion equation
2,127,472,065.24 : 3,188,669,194.89 = 990,178,377.99 : x - Step 2: Convert to fraction form
2,127,472,065.24/3,188,669,194.89 = 990,178,377.99/x - Step 3: Cross multiply
2,127,472,065.24x = 3,188,669,194.89 × 990,178,377.99 - Step 4: Simplify right side
2,127,472,065.24x = 3,157,351,291,342,859,264 - Step 5: Solve for x
x = 3,157,351,291,342,859,264/2,127,472,065.24 - Step 6: Final answer
x = 1,484,085,898.44
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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.