Finding the Fourth Proportional to 995,732,226.80, 1,493,598,340.20 and 421,228,905.20
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Solution
The fourth proportional to 995,732,226.80, 1,493,598,340.20 and 421,228,905.20 is: 631,843,357.80
Step by Step Solution
- Step 1: Write the proportion equation
995,732,226.80 : 1,493,598,340.20 = 421,228,905.20 : x - Step 2: Convert to fraction form
995,732,226.80/1,493,598,340.20 = 421,228,905.20/x - Step 3: Cross multiply
995,732,226.80x = 1,493,598,340.20 × 421,228,905.20 - Step 4: Simplify right side
995,732,226.80x = 629,146,793,650,983,168 - Step 5: Solve for x
x = 629,146,793,650,983,168/995,732,226.80 - Step 6: Final answer
x = 631,843,357.80
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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.