Finding the Fourth Proportional to 5,396,828.40, 7,447,642.61 and 2,949,438.69
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Solution
The fourth proportional to 5,396,828.40, 7,447,642.61 and 2,949,438.69 is: 4,070,236.00
Step by Step Solution
- Step 1: Write the proportion equation
5,396,828.40 : 7,447,642.61 = 2,949,438.69 : x - Step 2: Convert to fraction form
5,396,828.40/7,447,642.61 = 2,949,438.69/x - Step 3: Cross multiply
5,396,828.40x = 7,447,642.61 × 2,949,438.69 - Step 4: Simplify right side
5,396,828.40x = 21,966,365,248,479.39 - Step 5: Solve for x
x = 21,966,365,248,479.39/5,396,828.40 - Step 6: Final answer
x = 4,070,236.00
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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.