Finding the Fourth Proportional to 48,871,758.60, 67,439,093.70 and 28,246,540.68
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Solution
The fourth proportional to 48,871,758.60, 67,439,093.70 and 28,246,540.68 is: 38,977,952.87
Step by Step Solution
- Step 1: Write the proportion equation
48,871,758.60 : 67,439,093.70 = 28,246,540.68 : x - Step 2: Convert to fraction form
48,871,758.60/67,439,093.70 = 28,246,540.68/x - Step 3: Cross multiply
48,871,758.60x = 67,439,093.70 × 28,246,540.68 - Step 4: Simplify right side
48,871,758.60x = 1,904,921,103,619,381.75 - Step 5: Solve for x
x = 1,904,921,103,619,381.75/48,871,758.60 - Step 6: Final answer
x = 38,977,952.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.