Finding the Fourth Proportional to 10,400,440.80, 15,581,998.80 and 8,907,448.80
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Solution
The fourth proportional to 10,400,440.80, 15,581,998.80 and 8,907,448.80 is: 13,345,189.80
Step by Step Solution
- Step 1: Write the proportion equation
10,400,440.80 : 15,581,998.80 = 8,907,448.80 : x - Step 2: Convert to fraction form
10,400,440.80/15,581,998.80 = 8,907,448.80/x - Step 3: Cross multiply
10,400,440.80x = 15,581,998.80 × 8,907,448.80 - Step 4: Simplify right side
10,400,440.80x = 138,795,856,512,661.45 - Step 5: Solve for x
x = 138,795,856,512,661.45/10,400,440.80 - Step 6: Final answer
x = 13,345,189.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.