Finding the Fourth Proportional to 212,486,948.73, 293,224,247.71 and 118,396,234.12
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Solution
The fourth proportional to 212,486,948.73, 293,224,247.71 and 118,396,234.12 is: 163,382,489.55
Step by Step Solution
- Step 1: Write the proportion equation
212,486,948.73 : 293,224,247.71 = 118,396,234.12 : x - Step 2: Convert to fraction form
212,486,948.73/293,224,247.71 = 118,396,234.12/x - Step 3: Cross multiply
212,486,948.73x = 293,224,247.71 × 118,396,234.12 - Step 4: Simplify right side
212,486,948.73x = 34,716,646,681,056,240 - Step 5: Solve for x
x = 34,716,646,681,056,240/212,486,948.73 - Step 6: Final answer
x = 163,382,489.55
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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.