Finding the Fourth Proportional to 68,854,321.08, 95,015,246.86 and 39,486,891.42
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Solution
The fourth proportional to 68,854,321.08, 95,015,246.86 and 39,486,891.42 is: 54,489,778.96
Step by Step Solution
- Step 1: Write the proportion equation
68,854,321.08 : 95,015,246.86 = 39,486,891.42 : x - Step 2: Convert to fraction form
68,854,321.08/95,015,246.86 = 39,486,891.42/x - Step 3: Cross multiply
68,854,321.08x = 95,015,246.86 × 39,486,891.42 - Step 4: Simplify right side
68,854,321.08x = 3,751,856,736,165,633 - Step 5: Solve for x
x = 3,751,856,736,165,633/68,854,321.08 - Step 6: Final answer
x = 54,489,778.96
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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.