Finding the Fourth Proportional to 28,493,874,817,956, 39,319,389,289,210 and 15,991,190,183,992
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Solution
The fourth proportional to 28,493,874,817,956, 39,319,389,289,210 and 15,991,190,183,992 is: 22,066,631,374,612.02
Step by Step Solution
- Step 1: Write the proportion equation
28,493,874,817,956 : 39,319,389,289,210 = 15,991,190,183,992 : x - Step 2: Convert to fraction form
28,493,874,817,956/39,319,389,289,210 = 15,991,190,183,992/x - Step 3: Cross multiply
28,493,874,817,956x = 39,319,389,289,210 × 15,991,190,183,992 - Step 4: Simplify right side
28,493,874,817,956x = 628,763,832,042,175,146,477,223,936 - Step 5: Solve for x
x = 628,763,832,042,175,146,477,223,936/28,493,874,817,956 - Step 6: Final answer
x = 22,066,631,374,612.02
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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.