Finding the Fourth Proportional to 4,820,785.94, 6,655,801.05 and 2,987,190.02
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Solution
The fourth proportional to 4,820,785.94, 6,655,801.05 and 2,987,190.02 is: 4,124,253.33
Step by Step Solution
- Step 1: Write the proportion equation
4,820,785.94 : 6,655,801.05 = 2,987,190.02 : x - Step 2: Convert to fraction form
4,820,785.94/6,655,801.05 = 2,987,190.02/x - Step 3: Cross multiply
4,820,785.94x = 6,655,801.05 × 2,987,190.02 - Step 4: Simplify right side
4,820,785.94x = 19,882,142,488,305.02 - Step 5: Solve for x
x = 19,882,142,488,305.02/4,820,785.94 - Step 6: Final answer
x = 4,124,253.33
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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.