Finding the Fourth Proportional to 311,878,482.24, 430,397,380.53 and 170,747,320.62
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Solution
The fourth proportional to 311,878,482.24, 430,397,380.53 and 170,747,320.62 is: 235,634,080.94
Step by Step Solution
- Step 1: Write the proportion equation
311,878,482.24 : 430,397,380.53 = 170,747,320.62 : x - Step 2: Convert to fraction form
311,878,482.24/430,397,380.53 = 170,747,320.62/x - Step 3: Cross multiply
311,878,482.24x = 430,397,380.53 × 170,747,320.62 - Step 4: Simplify right side
311,878,482.24x = 73,489,199,527,364,048 - Step 5: Solve for x
x = 73,489,199,527,364,048/311,878,482.24 - Step 6: Final answer
x = 235,634,080.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.