Finding the Fourth Proportional to 10,458,209.80, 15,687,314.70 and 2,885,163.40
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Solution
The fourth proportional to 10,458,209.80, 15,687,314.70 and 2,885,163.40 is: 4,327,745.10
Step by Step Solution
- Step 1: Write the proportion equation
10,458,209.80 : 15,687,314.70 = 2,885,163.40 : x - Step 2: Convert to fraction form
10,458,209.80/15,687,314.70 = 2,885,163.40/x - Step 3: Cross multiply
10,458,209.80x = 15,687,314.70 × 2,885,163.40 - Step 4: Simplify right side
10,458,209.80x = 45,260,466,216,721.98 - Step 5: Solve for x
x = 45,260,466,216,721.98/10,458,209.80 - Step 6: Final answer
x = 4,327,745.10
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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.