Finding the Fourth Proportional to 311,879,097.42, 430,398,251.14 and 170,747,963.34
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Solution
The fourth proportional to 311,879,097.42, 430,398,251.14 and 170,747,963.34 is: 235,634,979.76
Step by Step Solution
- Step 1: Write the proportion equation
311,879,097.42 : 430,398,251.14 = 170,747,963.34 : x - Step 2: Convert to fraction form
311,879,097.42/430,398,251.14 = 170,747,963.34/x - Step 3: Cross multiply
311,879,097.42x = 430,398,251.14 × 170,747,963.34 - Step 4: Simplify right side
311,879,097.42x = 73,489,624,807,252,832 - Step 5: Solve for x
x = 73,489,624,807,252,832/311,879,097.42 - Step 6: Final answer
x = 235,634,979.76
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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.