Finding the Fourth Proportional to 4,258,647.61, 6,382,655.17 and 2,129,340.67
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Solution
The fourth proportional to 4,258,647.61, 6,382,655.17 and 2,129,340.67 is: 3,191,352.86
Step by Step Solution
- Step 1: Write the proportion equation
4,258,647.61 : 6,382,655.17 = 2,129,340.67 : x - Step 2: Convert to fraction form
4,258,647.61/6,382,655.17 = 2,129,340.67/x - Step 3: Cross multiply
4,258,647.61x = 6,382,655.17 × 2,129,340.67 - Step 4: Simplify right side
4,258,647.61x = 13,590,847,236,066.76 - Step 5: Solve for x
x = 13,590,847,236,066.76/4,258,647.61 - Step 6: Final answer
x = 3,191,352.86
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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.