Finding the Fourth Proportional to 347,635,404.80, 521,453,107.20 and 291,515,235.20
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Solution
The fourth proportional to 347,635,404.80, 521,453,107.20 and 291,515,235.20 is: 437,272,852.80
Step by Step Solution
- Step 1: Write the proportion equation
347,635,404.80 : 521,453,107.20 = 291,515,235.20 : x - Step 2: Convert to fraction form
347,635,404.80/521,453,107.20 = 291,515,235.20/x - Step 3: Cross multiply
347,635,404.80x = 521,453,107.20 × 291,515,235.20 - Step 4: Simplify right side
347,635,404.80x = 152,011,525,191,178,816 - Step 5: Solve for x
x = 152,011,525,191,178,816/347,635,404.80 - Step 6: Final answer
x = 437,272,852.80
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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.