Finding the Fourth Proportional to 286,579,378.80, 429,869,068.20 and 281,796,409.80
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Solution
The fourth proportional to 286,579,378.80, 429,869,068.20 and 281,796,409.80 is: 422,694,614.70
Step by Step Solution
- Step 1: Write the proportion equation
286,579,378.80 : 429,869,068.20 = 281,796,409.80 : x - Step 2: Convert to fraction form
286,579,378.80/429,869,068.20 = 281,796,409.80/x - Step 3: Cross multiply
286,579,378.80x = 429,869,068.20 × 281,796,409.80 - Step 4: Simplify right side
286,579,378.80x = 121,135,560,102,831,344 - Step 5: Solve for x
x = 121,135,560,102,831,344/286,579,378.80 - Step 6: Final answer
x = 422,694,614.70
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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.