Finding the Fourth Proportional to 19,977,915.36, 27,562,775.28 and 13,005,409.44
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Solution
The fourth proportional to 19,977,915.36, 27,562,775.28 and 13,005,409.44 is: 17,943,072.21
Step by Step Solution
- Step 1: Write the proportion equation
19,977,915.36 : 27,562,775.28 = 13,005,409.44 : x - Step 2: Convert to fraction form
19,977,915.36/27,562,775.28 = 13,005,409.44/x - Step 3: Cross multiply
19,977,915.36x = 27,562,775.28 × 13,005,409.44 - Step 4: Simplify right side
19,977,915.36x = 358,465,177,819,110.62 - Step 5: Solve for x
x = 358,465,177,819,110.62/19,977,915.36 - Step 6: Final answer
x = 17,943,072.21
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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.