Finding the Fourth Proportional to 5,279,931.88, 7,286,305.99 and 2,865,483.88
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Solution
The fourth proportional to 5,279,931.88, 7,286,305.99 and 2,865,483.88 is: 3,954,367.75
Step by Step Solution
- Step 1: Write the proportion equation
5,279,931.88 : 7,286,305.99 = 2,865,483.88 : x - Step 2: Convert to fraction form
5,279,931.88/7,286,305.99 = 2,865,483.88/x - Step 3: Cross multiply
5,279,931.88x = 7,286,305.99 × 2,865,483.88 - Step 4: Simplify right side
5,279,931.88x = 20,878,792,322,660.91 - Step 5: Solve for x
x = 20,878,792,322,660.91/5,279,931.88 - Step 6: Final answer
x = 3,954,367.75
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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.