Finding the Fourth Proportional to 5,390,910.66, 7,439,758 and 2,943,748.80
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Solution
The fourth proportional to 5,390,910.66, 7,439,758 and 2,943,748.80 is: 4,062,537.87
Step by Step Solution
- Step 1: Write the proportion equation
5,390,910.66 : 7,439,758 = 2,943,748.80 : x - Step 2: Convert to fraction form
5,390,910.66/7,439,758 = 2,943,748.80/x - Step 3: Cross multiply
5,390,910.66x = 7,439,758 × 2,943,748.80 - Step 4: Simplify right side
5,390,910.66x = 21,900,778,684,790.40 - Step 5: Solve for x
x = 21,900,778,684,790.40/5,390,910.66 - Step 6: Final answer
x = 4,062,537.87
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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.