Finding the Fourth Proportional to 311,916,149.68, 430,442,707.79 and 170,784,805.86
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Solution
The fourth proportional to 311,916,149.68, 430,442,707.79 and 170,784,805.86 is: 235,682,167.65
Step by Step Solution
- Step 1: Write the proportion equation
311,916,149.68 : 430,442,707.79 = 170,784,805.86 : x - Step 2: Convert to fraction form
311,916,149.68/430,442,707.79 = 170,784,805.86/x - Step 3: Cross multiply
311,916,149.68x = 430,442,707.79 × 170,784,805.86 - Step 4: Simplify right side
311,916,149.68x = 73,513,074,282,913,952 - Step 5: Solve for x
x = 73,513,074,282,913,952/311,916,149.68 - Step 6: Final answer
x = 235,682,167.65
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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.