Finding the Fourth Proportional to 372,295,909.17, 557,717,365.33 and 290,029,589.60
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Solution
The fourth proportional to 372,295,909.17, 557,717,365.33 and 290,029,589.60 is: 434,478,420.50
Step by Step Solution
- Step 1: Write the proportion equation
372,295,909.17 : 557,717,365.33 = 290,029,589.60 : x - Step 2: Convert to fraction form
372,295,909.17/557,717,365.33 = 290,029,589.60/x - Step 3: Cross multiply
372,295,909.17x = 557,717,365.33 × 290,029,589.60 - Step 4: Simplify right side
372,295,909.17x = 161,754,538,575,939,520 - Step 5: Solve for x
x = 161,754,538,575,939,520/372,295,909.17 - Step 6: Final answer
x = 434,478,420.50
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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.