Finding the Fourth Proportional to 13,258,541.76, 18,314,798.40 and 10,394,096.64
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Solution
The fourth proportional to 13,258,541.76, 18,314,798.40 and 10,394,096.64 is: 14,357,972.99
Step by Step Solution
- Step 1: Write the proportion equation
13,258,541.76 : 18,314,798.40 = 10,394,096.64 : x - Step 2: Convert to fraction form
13,258,541.76/18,314,798.40 = 10,394,096.64/x - Step 3: Cross multiply
13,258,541.76x = 18,314,798.40 × 10,394,096.64 - Step 4: Simplify right side
13,258,541.76x = 190,365,784,511,717.38 - Step 5: Solve for x
x = 190,365,784,511,717.38/13,258,541.76 - Step 6: Final answer
x = 14,357,972.99
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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.