Finding the Fourth Proportional to 10,672,209.15, 14,727,653.18 and 5,777,431.12
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Solution
The fourth proportional to 10,672,209.15, 14,727,653.18 and 5,777,431.12 is: 7,972,857.41
Step by Step Solution
- Step 1: Write the proportion equation
10,672,209.15 : 14,727,653.18 = 5,777,431.12 : x - Step 2: Convert to fraction form
10,672,209.15/14,727,653.18 = 5,777,431.12/x - Step 3: Cross multiply
10,672,209.15x = 14,727,653.18 × 5,777,431.12 - Step 4: Simplify right side
10,672,209.15x = 85,088,001,806,698.97 - Step 5: Solve for x
x = 85,088,001,806,698.97/10,672,209.15 - Step 6: Final answer
x = 7,972,857.41
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1.5x scale
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.