Finding the Fourth Proportional to 339,968,501.20, 509,952,751.80 and 271,944,053.20
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Solution
The fourth proportional to 339,968,501.20, 509,952,751.80 and 271,944,053.20 is: 407,916,079.80
Step by Step Solution
- Step 1: Write the proportion equation
339,968,501.20 : 509,952,751.80 = 271,944,053.20 : x - Step 2: Convert to fraction form
339,968,501.20/509,952,751.80 = 271,944,053.20/x - Step 3: Cross multiply
339,968,501.20x = 509,952,751.80 × 271,944,053.20 - Step 4: Simplify right side
339,968,501.20x = 138,678,618,264,985,600 - Step 5: Solve for x
x = 138,678,618,264,985,600/339,968,501.20 - Step 6: Final answer
x = 407,916,079.80
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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.