Finding the Fourth Proportional to 129,042,191.80, 193,536,387.60 and 47,199,621.70
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Solution
The fourth proportional to 129,042,191.80, 193,536,387.60 and 47,199,621.70 is: 70,789,593.33
Step by Step Solution
- Step 1: Write the proportion equation
129,042,191.80 : 193,536,387.60 = 47,199,621.70 : x - Step 2: Convert to fraction form
129,042,191.80/193,536,387.60 = 47,199,621.70/x - Step 3: Cross multiply
129,042,191.80x = 193,536,387.60 × 47,199,621.70 - Step 4: Simplify right side
129,042,191.80x = 9,134,844,279,904,572 - Step 5: Solve for x
x = 9,134,844,279,904,572/129,042,191.80 - Step 6: Final answer
x = 70,789,593.33
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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.