Finding the Fourth Proportional to 343,949,686.29, 515,414,345.67 and 252,626,864.85
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Solution
The fourth proportional to 343,949,686.29, 515,414,345.67 and 252,626,864.85 is: 378,565,573.50
Step by Step Solution
- Step 1: Write the proportion equation
343,949,686.29 : 515,414,345.67 = 252,626,864.85 : x - Step 2: Convert to fraction form
343,949,686.29/515,414,345.67 = 252,626,864.85/x - Step 3: Cross multiply
343,949,686.29x = 515,414,345.67 × 252,626,864.85 - Step 4: Simplify right side
343,949,686.29x = 130,207,510,245,326,272 - Step 5: Solve for x
x = 130,207,510,245,326,272/343,949,686.29 - Step 6: Final answer
x = 378,565,573.50
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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.