Finding the Fourth Proportional to 10,362,734.40, 15,544,101.60 and 7,542,638.40
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Solution
The fourth proportional to 10,362,734.40, 15,544,101.60 and 7,542,638.40 is: 11,313,957.60
Step by Step Solution
- Step 1: Write the proportion equation
10,362,734.40 : 15,544,101.60 = 7,542,638.40 : x - Step 2: Convert to fraction form
10,362,734.40/15,544,101.60 = 7,542,638.40/x - Step 3: Cross multiply
10,362,734.40x = 15,544,101.60 × 7,542,638.40 - Step 4: Simplify right side
10,362,734.40x = 117,243,537,621,661.44 - Step 5: Solve for x
x = 117,243,537,621,661.44/10,362,734.40 - Step 6: Final answer
x = 11,313,957.60
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1.5x scale
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.