Finding the Fourth Proportional to 7,639,799.55, 10,543,122.84 and 4,202,130.81
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Solution
The fourth proportional to 7,639,799.55, 10,543,122.84 and 4,202,130.81 is: 5,799,050.23
Step by Step Solution
- Step 1: Write the proportion equation
7,639,799.55 : 10,543,122.84 = 4,202,130.81 : x - Step 2: Convert to fraction form
7,639,799.55/10,543,122.84 = 4,202,130.81/x - Step 3: Cross multiply
7,639,799.55x = 10,543,122.84 × 4,202,130.81 - Step 4: Simplify right side
7,639,799.55x = 44,303,581,319,578.70 - Step 5: Solve for x
x = 44,303,581,319,578.70/7,639,799.55 - Step 6: Final answer
x = 5,799,050.23
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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.