Finding the Fourth Proportional to 4,932,331.20, 7,390,623.60 and 4,129,264.80
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Solution
The fourth proportional to 4,932,331.20, 7,390,623.60 and 4,129,264.80 is: 6,187,305.89
Step by Step Solution
- Step 1: Write the proportion equation
4,932,331.20 : 7,390,623.60 = 4,129,264.80 : x - Step 2: Convert to fraction form
4,932,331.20/7,390,623.60 = 4,129,264.80/x - Step 3: Cross multiply
4,932,331.20x = 7,390,623.60 × 4,129,264.80 - Step 4: Simplify right side
4,932,331.20x = 30,517,841,881,529.28 - Step 5: Solve for x
x = 30,517,841,881,529.28/4,932,331.20 - Step 6: Final answer
x = 6,187,305.89
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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.