Finding the Fourth Proportional to 10,216,745.12, 15,318,031.08 and 5,427,797.60
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Solution
The fourth proportional to 10,216,745.12, 15,318,031.08 and 5,427,797.60 is: 8,137,931.54
Step by Step Solution
- Step 1: Write the proportion equation
10,216,745.12 : 15,318,031.08 = 5,427,797.60 : x - Step 2: Convert to fraction form
10,216,745.12/15,318,031.08 = 5,427,797.60/x - Step 3: Cross multiply
10,216,745.12x = 15,318,031.08 × 5,427,797.60 - Step 4: Simplify right side
10,216,745.12x = 83,143,172,332,749.41 - Step 5: Solve for x
x = 83,143,172,332,749.41/10,216,745.12 - Step 6: Final answer
x = 8,137,931.54
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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.