Finding the Fourth Proportional to 1,651,824,578.84, 2,279,564,907.62 and 899,186,291.38
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Solution
The fourth proportional to 1,651,824,578.84, 2,279,564,907.62 and 899,186,291.38 is: 1,240,902,660.91
Step by Step Solution
- Step 1: Write the proportion equation
1,651,824,578.84 : 2,279,564,907.62 = 899,186,291.38 : x - Step 2: Convert to fraction form
1,651,824,578.84/2,279,564,907.62 = 899,186,291.38/x - Step 3: Cross multiply
1,651,824,578.84x = 2,279,564,907.62 × 899,186,291.38 - Step 4: Simplify right side
1,651,824,578.84x = 2,049,753,515,242,820,096 - Step 5: Solve for x
x = 2,049,753,515,242,820,096/1,651,824,578.84 - Step 6: Final answer
x = 1,240,902,660.91
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.