Finding the Fourth Proportional to 1,423,611,908.80, 2,135,417,863.20 and 1,117,847,147.20
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Solution
The fourth proportional to 1,423,611,908.80, 2,135,417,863.20 and 1,117,847,147.20 is: 1,676,770,720.80
Step by Step Solution
- Step 1: Write the proportion equation
1,423,611,908.80 : 2,135,417,863.20 = 1,117,847,147.20 : x - Step 2: Convert to fraction form
1,423,611,908.80/2,135,417,863.20 = 1,117,847,147.20/x - Step 3: Cross multiply
1,423,611,908.80x = 2,135,417,863.20 × 1,117,847,147.20 - Step 4: Simplify right side
1,423,611,908.80x = 2,387,070,766,458,039,808 - Step 5: Solve for x
x = 2,387,070,766,458,039,808/1,423,611,908.80 - Step 6: Final answer
x = 1,676,770,720.80
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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.