Finding the Fourth Proportional to 5,280,538.68, 7,286,948.46 and 2,866,038.84
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Solution
The fourth proportional to 5,280,538.68, 7,286,948.46 and 2,866,038.84 is: 3,955,027.81
Step by Step Solution
- Step 1: Write the proportion equation
5,280,538.68 : 7,286,948.46 = 2,866,038.84 : x - Step 2: Convert to fraction form
5,280,538.68/7,286,948.46 = 2,866,038.84/x - Step 3: Cross multiply
5,280,538.68x = 7,286,948.46 × 2,866,038.84 - Step 4: Simplify right side
5,280,538.68x = 20,884,677,311,438.18 - Step 5: Solve for x
x = 20,884,677,311,438.18/5,280,538.68 - Step 6: Final answer
x = 3,955,027.81
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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.