Finding the Fourth Proportional to 57,170,585.61, 78,895,236.36 and 31,065,183.09
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Solution
The fourth proportional to 57,170,585.61, 78,895,236.36 and 31,065,183.09 is: 42,869,859.32
Step by Step Solution
- Step 1: Write the proportion equation
57,170,585.61 : 78,895,236.36 = 31,065,183.09 : x - Step 2: Convert to fraction form
57,170,585.61/78,895,236.36 = 31,065,183.09/x - Step 3: Cross multiply
57,170,585.61x = 78,895,236.36 × 31,065,183.09 - Step 4: Simplify right side
57,170,585.61x = 2,450,894,962,452,225 - Step 5: Solve for x
x = 2,450,894,962,452,225/57,170,585.61 - Step 6: Final answer
x = 42,869,859.32
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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.