Finding the Fourth Proportional to 10,513,310.80, 15,763,745.40 and 5,474,462.80
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Solution
The fourth proportional to 10,513,310.80, 15,763,745.40 and 5,474,462.80 is: 8,208,454.92
Step by Step Solution
- Step 1: Write the proportion equation
10,513,310.80 : 15,763,745.40 = 5,474,462.80 : x - Step 2: Convert to fraction form
10,513,310.80/15,763,745.40 = 5,474,462.80/x - Step 3: Cross multiply
10,513,310.80x = 15,763,745.40 × 5,474,462.80 - Step 4: Simplify right side
10,513,310.80x = 86,298,037,780,971.12 - Step 5: Solve for x
x = 86,298,037,780,971.12/10,513,310.80 - Step 6: Final answer
x = 8,208,454.92
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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.