Finding the Fourth Proportional to 253,123,634,798.22, 349,310,961,932.02 and 137,380,396,212.99
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Solution
The fourth proportional to 253,123,634,798.22, 349,310,961,932.02 and 137,380,396,212.99 is: 189,585,134,513.48
Step by Step Solution
- Step 1: Write the proportion equation
253,123,634,798.22 : 349,310,961,932.02 = 137,380,396,212.99 : x - Step 2: Convert to fraction form
253,123,634,798.22/349,310,961,932.02 = 137,380,396,212.99/x - Step 3: Cross multiply
253,123,634,798.22x = 349,310,961,932.02 × 137,380,396,212.99 - Step 4: Simplify right side
253,123,634,798.22x = 47,988,478,351,761,580,490,752 - Step 5: Solve for x
x = 47,988,478,351,761,580,490,752/253,123,634,798.22 - Step 6: Final answer
x = 189,585,134,513.48
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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.