Finding the Fourth Proportional to 28,493,874,817,824, 39,319,389,289,035 and 15,991,190,183,862
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Solution
The fourth proportional to 28,493,874,817,824, 39,319,389,289,035 and 15,991,190,183,862 is: 22,066,631,374,436.64
Step by Step Solution
- Step 1: Write the proportion equation
28,493,874,817,824 : 39,319,389,289,035 = 15,991,190,183,862 : x - Step 2: Convert to fraction form
28,493,874,817,824/39,319,389,289,035 = 15,991,190,183,862/x - Step 3: Cross multiply
28,493,874,817,824x = 39,319,389,289,035 × 15,991,190,183,862 - Step 4: Simplify right side
28,493,874,817,824x = 628,763,832,034,265,122,388,049,920 - Step 5: Solve for x
x = 628,763,832,034,265,122,388,049,920/28,493,874,817,824 - Step 6: Final answer
x = 22,066,631,374,436.64
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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.