Finding the Fourth Proportional to 13,563,028.32, 18,706,154.22 and 8,921,580.12
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Solution
The fourth proportional to 13,563,028.32, 18,706,154.22 and 8,921,580.12 is: 12,304,660.12
Step by Step Solution
- Step 1: Write the proportion equation
13,563,028.32 : 18,706,154.22 = 8,921,580.12 : x - Step 2: Convert to fraction form
13,563,028.32/18,706,154.22 = 8,921,580.12/x - Step 3: Cross multiply
13,563,028.32x = 18,706,154.22 × 8,921,580.12 - Step 4: Simplify right side
13,563,028.32x = 166,888,453,610,806.09 - Step 5: Solve for x
x = 166,888,453,610,806.09/13,563,028.32 - Step 6: Final answer
x = 12,304,660.12
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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.