Finding the Fourth Proportional to 20,541,817.14, 28,347,361.44 and 11,374,263.06
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Solution
The fourth proportional to 20,541,817.14, 28,347,361.44 and 11,374,263.06 is: 15,696,291.32
Step by Step Solution
- Step 1: Write the proportion equation
20,541,817.14 : 28,347,361.44 = 11,374,263.06 : x - Step 2: Convert to fraction form
20,541,817.14/28,347,361.44 = 11,374,263.06/x - Step 3: Cross multiply
20,541,817.14x = 28,347,361.44 × 11,374,263.06 - Step 4: Simplify right side
20,541,817.14x = 322,430,346,075,460.44 - Step 5: Solve for x
x = 322,430,346,075,460.44/20,541,817.14 - Step 6: Final answer
x = 15,696,291.32
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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.