Finding the Fourth Proportional to 339,824,211.72, 509,531,296.68 and 129,748,615.44
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Solution
The fourth proportional to 339,824,211.72, 509,531,296.68 and 129,748,615.44 is: 194,544,643.93
Step by Step Solution
- Step 1: Write the proportion equation
339,824,211.72 : 509,531,296.68 = 129,748,615.44 : x - Step 2: Convert to fraction form
339,824,211.72/509,531,296.68 = 129,748,615.44/x - Step 3: Cross multiply
339,824,211.72x = 509,531,296.68 × 129,748,615.44 - Step 4: Simplify right side
339,824,211.72x = 66,110,980,267,577,872 - Step 5: Solve for x
x = 66,110,980,267,577,872/339,824,211.72 - Step 6: Final answer
x = 194,544,643.93
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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.