Finding the Fourth Proportional to 2,878,906,926.05, 4,318,527,793.01 and 808,790,113.16
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Solution
The fourth proportional to 2,878,906,926.05, 4,318,527,793.01 and 808,790,113.16 is: 1,213,232,199.62
Step by Step Solution
- Step 1: Write the proportion equation
2,878,906,926.05 : 4,318,527,793.01 = 808,790,113.16 : x - Step 2: Convert to fraction form
2,878,906,926.05/4,318,527,793.01 = 808,790,113.16/x - Step 3: Cross multiply
2,878,906,926.05x = 4,318,527,793.01 × 808,790,113.16 - Step 4: Simplify right side
2,878,906,926.05x = 3,492,782,582,383,720,960 - Step 5: Solve for x
x = 3,492,782,582,383,720,960/2,878,906,926.05 - Step 6: Final answer
x = 1,213,232,199.62
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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.