Finding the Fourth Proportional to 3,899,633,176.74, 5,381,493,783.72 and 2,228,918,190.18
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Solution
The fourth proportional to 3,899,633,176.74, 5,381,493,783.72 and 2,228,918,190.18 is: 3,075,907,102.34
Step by Step Solution
- Step 1: Write the proportion equation
3,899,633,176.74 : 5,381,493,783.72 = 2,228,918,190.18 : x - Step 2: Convert to fraction form
3,899,633,176.74/5,381,493,783.72 = 2,228,918,190.18/x - Step 3: Cross multiply
3,899,633,176.74x = 5,381,493,783.72 × 2,228,918,190.18 - Step 4: Simplify right side
3,899,633,176.74x = 11,994,909,384,874,102,784 - Step 5: Solve for x
x = 11,994,909,384,874,102,784/3,899,633,176.74 - Step 6: Final answer
x = 3,075,907,102.34
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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.