Finding the Fourth Proportional to 48,212,612.68, 72,318,919.02 and 21,280,903.24
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Solution
The fourth proportional to 48,212,612.68, 72,318,919.02 and 21,280,903.24 is: 31,921,354.86
Step by Step Solution
- Step 1: Write the proportion equation
48,212,612.68 : 72,318,919.02 = 21,280,903.24 : x - Step 2: Convert to fraction form
48,212,612.68/72,318,919.02 = 21,280,903.24/x - Step 3: Cross multiply
48,212,612.68x = 72,318,919.02 × 21,280,903.24 - Step 4: Simplify right side
48,212,612.68x = 1,539,011,918,086,015.50 - Step 5: Solve for x
x = 1,539,011,918,086,015.50/48,212,612.68 - Step 6: Final answer
x = 31,921,354.86
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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.