Finding the Fourth Proportional to 7,124,653.12, 10,661,752.48 and 4,430,247.16
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Solution
The fourth proportional to 7,124,653.12, 10,661,752.48 and 4,430,247.16 is: 6,629,683.98
Step by Step Solution
- Step 1: Write the proportion equation
7,124,653.12 : 10,661,752.48 = 4,430,247.16 : x - Step 2: Convert to fraction form
7,124,653.12/10,661,752.48 = 4,430,247.16/x - Step 3: Cross multiply
7,124,653.12x = 10,661,752.48 × 4,430,247.16 - Step 4: Simplify right side
7,124,653.12x = 47,234,198,645,142.96 - Step 5: Solve for x
x = 47,234,198,645,142.96/7,124,653.12 - Step 6: Final answer
x = 6,629,683.98
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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.