Finding the Fourth Proportional to 6,858,205.20, 10,276,810.20 and 6,480,291.60
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Solution
The fourth proportional to 6,858,205.20, 10,276,810.20 and 6,480,291.60 is: 9,710,518.26
Step by Step Solution
- Step 1: Write the proportion equation
6,858,205.20 : 10,276,810.20 = 6,480,291.60 : x - Step 2: Convert to fraction form
6,858,205.20/10,276,810.20 = 6,480,291.60/x - Step 3: Cross multiply
6,858,205.20x = 10,276,810.20 × 6,480,291.60 - Step 4: Simplify right side
6,858,205.20x = 66,596,726,813,854.31 - Step 5: Solve for x
x = 66,596,726,813,854.31/6,858,205.20 - Step 6: Final answer
x = 9,710,518.26
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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.