Finding the Fourth Proportional to 3,996,593,610.88, 5,515,364,506.08 and 2,188,075,325.44
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Solution
The fourth proportional to 3,996,593,610.88, 5,515,364,506.08 and 2,188,075,325.44 is: 3,019,579,712.51
Step by Step Solution
- Step 1: Write the proportion equation
3,996,593,610.88 : 5,515,364,506.08 = 2,188,075,325.44 : x - Step 2: Convert to fraction form
3,996,593,610.88/5,515,364,506.08 = 2,188,075,325.44/x - Step 3: Cross multiply
3,996,593,610.88x = 5,515,364,506.08 × 2,188,075,325.44 - Step 4: Simplify right side
3,996,593,610.88x = 12,068,032,986,561,220,608 - Step 5: Solve for x
x = 12,068,032,986,561,220,608/3,996,593,610.88 - Step 6: Final answer
x = 3,019,579,712.51
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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.