Finding the Fourth Proportional to 255,405,135.27, 352,459,073.16 and 137,930,454.18
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Solution
The fourth proportional to 255,405,135.27, 352,459,073.16 and 137,930,454.18 is: 190,344,019.47
Step by Step Solution
- Step 1: Write the proportion equation
255,405,135.27 : 352,459,073.16 = 137,930,454.18 : x - Step 2: Convert to fraction form
255,405,135.27/352,459,073.16 = 137,930,454.18/x - Step 3: Cross multiply
255,405,135.27x = 352,459,073.16 × 137,930,454.18 - Step 4: Simplify right side
255,405,135.27x = 48,614,840,040,820,656 - Step 5: Solve for x
x = 48,614,840,040,820,656/255,405,135.27 - Step 6: Final answer
x = 190,344,019.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.