Finding the Fourth Proportional to 1,310,536,181.45, 1,965,811,621.11 and 437,135,152.04
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Solution
The fourth proportional to 1,310,536,181.45, 1,965,811,621.11 and 437,135,152.04 is: 655,705,179.33
Step by Step Solution
- Step 1: Write the proportion equation
1,310,536,181.45 : 1,965,811,621.11 = 437,135,152.04 : x - Step 2: Convert to fraction form
1,310,536,181.45/1,965,811,621.11 = 437,135,152.04/x - Step 3: Cross multiply
1,310,536,181.45x = 1,965,811,621.11 × 437,135,152.04 - Step 4: Simplify right side
1,310,536,181.45x = 859,325,361,873,733,120 - Step 5: Solve for x
x = 859,325,361,873,733,120/1,310,536,181.45 - Step 6: Final answer
x = 655,705,179.33
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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.