Finding the Fourth Proportional to 7,344,639.40, 11,018,708.70 and 3,555,005.80
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Solution
The fourth proportional to 7,344,639.40, 11,018,708.70 and 3,555,005.80 is: 5,333,355.55
Step by Step Solution
- Step 1: Write the proportion equation
7,344,639.40 : 11,018,708.70 = 3,555,005.80 : x - Step 2: Convert to fraction form
7,344,639.40/11,018,708.70 = 3,555,005.80/x - Step 3: Cross multiply
7,344,639.40x = 11,018,708.70 × 3,555,005.80 - Step 4: Simplify right side
7,344,639.40x = 39,171,573,337,010.45 - Step 5: Solve for x
x = 39,171,573,337,010.45/7,344,639.40 - Step 6: Final answer
x = 5,333,355.55
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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.