Finding the Fourth Proportional to 7,389,845.38, 10,202,785.18 and 6,614,132.88
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Solution
The fourth proportional to 7,389,845.38, 10,202,785.18 and 6,614,132.88 is: 9,131,798.23
Step by Step Solution
- Step 1: Write the proportion equation
7,389,845.38 : 10,202,785.18 = 6,614,132.88 : x - Step 2: Convert to fraction form
7,389,845.38/10,202,785.18 = 6,614,132.88/x - Step 3: Cross multiply
7,389,845.38x = 10,202,785.18 × 6,614,132.88 - Step 4: Simplify right side
7,389,845.38x = 67,482,576,948,339.84 - Step 5: Solve for x
x = 67,482,576,948,339.84/7,389,845.38 - Step 6: Final answer
x = 9,131,798.23
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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.