Finding the Fourth Proportional to 172,814,724.12, 259,222,348.62 and 70,578,761.74
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Solution
The fourth proportional to 172,814,724.12, 259,222,348.62 and 70,578,761.74 is: 105,868,249.79
Step by Step Solution
- Step 1: Write the proportion equation
172,814,724.12 : 259,222,348.62 = 70,578,761.74 : x - Step 2: Convert to fraction form
172,814,724.12/259,222,348.62 = 70,578,761.74/x - Step 3: Cross multiply
172,814,724.12x = 259,222,348.62 × 70,578,761.74 - Step 4: Simplify right side
172,814,724.12x = 18,295,592,380,934,196 - Step 5: Solve for x
x = 18,295,592,380,934,196/172,814,724.12 - Step 6: Final answer
x = 105,868,249.79
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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.