Finding the Fourth Proportional to 4,655,616.62, 6,985,130.79 and 1,960,620.26
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Solution
The fourth proportional to 4,655,616.62, 6,985,130.79 and 1,960,620.26 is: 2,941,648.78
Step by Step Solution
- Step 1: Write the proportion equation
4,655,616.62 : 6,985,130.79 = 1,960,620.26 : x - Step 2: Convert to fraction form
4,655,616.62/6,985,130.79 = 1,960,620.26/x - Step 3: Cross multiply
4,655,616.62x = 6,985,130.79 × 1,960,620.26 - Step 4: Simplify right side
4,655,616.62x = 13,695,188,945,623.80 - Step 5: Solve for x
x = 13,695,188,945,623.80/4,655,616.62 - Step 6: Final answer
x = 2,941,648.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.