Finding the Fourth Proportional to 7,725,153.44, 10,660,215.12 and 4,287,396.80
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Solution
The fourth proportional to 7,725,153.44, 10,660,215.12 and 4,287,396.80 is: 5,916,331.96
Step by Step Solution
- Step 1: Write the proportion equation
7,725,153.44 : 10,660,215.12 = 4,287,396.80 : x - Step 2: Convert to fraction form
7,725,153.44/10,660,215.12 = 4,287,396.80/x - Step 3: Cross multiply
7,725,153.44x = 10,660,215.12 × 4,287,396.80 - Step 4: Simplify right side
7,725,153.44x = 45,704,572,192,799.61 - Step 5: Solve for x
x = 45,704,572,192,799.61/7,725,153.44 - Step 6: Final answer
x = 5,916,331.96
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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.