Finding the Fourth Proportional to 339,968,501.70, 509,952,752.55 and 271,944,053.70
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Solution
The fourth proportional to 339,968,501.70, 509,952,752.55 and 271,944,053.70 is: 407,916,080.55
Step by Step Solution
- Step 1: Write the proportion equation
339,968,501.70 : 509,952,752.55 = 271,944,053.70 : x - Step 2: Convert to fraction form
339,968,501.70/509,952,752.55 = 271,944,053.70/x - Step 3: Cross multiply
339,968,501.70x = 509,952,752.55 × 271,944,053.70 - Step 4: Simplify right side
339,968,501.70x = 138,678,618,723,920,016 - Step 5: Solve for x
x = 138,678,618,723,920,016/339,968,501.70 - Step 6: Final answer
x = 407,916,080.55
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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.