Finding the Fourth Proportional to 336,887,557.80, 505,331,336.70 and 155,489,029.80
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Solution
The fourth proportional to 336,887,557.80, 505,331,336.70 and 155,489,029.80 is: 233,233,544.70
Step by Step Solution
- Step 1: Write the proportion equation
336,887,557.80 : 505,331,336.70 = 155,489,029.80 : x - Step 2: Convert to fraction form
336,887,557.80/505,331,336.70 = 155,489,029.80/x - Step 3: Cross multiply
336,887,557.80x = 505,331,336.70 × 155,489,029.80 - Step 4: Simplify right side
336,887,557.80x = 78,573,479,271,020,144 - Step 5: Solve for x
x = 78,573,479,271,020,144/336,887,557.80 - Step 6: Final answer
x = 233,233,544.70
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1.5x scale
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.