Finding the Fourth Proportional to 253,396,528.14, 380,238,578.55 and 136,810,331.58
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Solution
The fourth proportional to 253,396,528.14, 380,238,578.55 and 136,810,331.58 is: 205,293,128.49
Step by Step Solution
- Step 1: Write the proportion equation
253,396,528.14 : 380,238,578.55 = 136,810,331.58 : x - Step 2: Convert to fraction form
253,396,528.14/380,238,578.55 = 136,810,331.58/x - Step 3: Cross multiply
253,396,528.14x = 380,238,578.55 × 136,810,331.58 - Step 4: Simplify right side
253,396,528.14x = 52,020,566,010,933,384 - Step 5: Solve for x
x = 52,020,566,010,933,384/253,396,528.14 - Step 6: Final answer
x = 205,293,128.49
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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.