Finding the Fourth Proportional to 3,899,633,175.23, 5,381,493,781.64 and 2,228,918,188.68
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Solution
The fourth proportional to 3,899,633,175.23, 5,381,493,781.64 and 2,228,918,188.68 is: 3,075,907,100.28
Step by Step Solution
- Step 1: Write the proportion equation
3,899,633,175.23 : 5,381,493,781.64 = 2,228,918,188.68 : x - Step 2: Convert to fraction form
3,899,633,175.23/5,381,493,781.64 = 2,228,918,188.68/x - Step 3: Cross multiply
3,899,633,175.23x = 5,381,493,781.64 × 2,228,918,188.68 - Step 4: Simplify right side
3,899,633,175.23x = 11,994,909,372,154,566,656 - Step 5: Solve for x
x = 11,994,909,372,154,566,656/3,899,633,175.23 - Step 6: Final answer
x = 3,075,907,100.28
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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.