Finding the Fourth Proportional to 2,127,472,064.74, 3,188,669,194.14 and 990,178,377.49
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Solution
The fourth proportional to 2,127,472,064.74, 3,188,669,194.14 and 990,178,377.49 is: 1,484,085,897.69
Step by Step Solution
- Step 1: Write the proportion equation
2,127,472,064.74 : 3,188,669,194.14 = 990,178,377.49 : x - Step 2: Convert to fraction form
2,127,472,064.74/3,188,669,194.14 = 990,178,377.49/x - Step 3: Cross multiply
2,127,472,064.74x = 3,188,669,194.14 × 990,178,377.49 - Step 4: Simplify right side
2,127,472,064.74x = 3,157,351,289,005,891,072 - Step 5: Solve for x
x = 3,157,351,289,005,891,072/2,127,472,064.74 - Step 6: Final answer
x = 1,484,085,897.69
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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.