Finding the Fourth Proportional to 251,665,387.41, 347,340,496.58 and 145,884,971.68
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Solution
The fourth proportional to 251,665,387.41, 347,340,496.58 and 145,884,971.68 is: 201,345,759.25
Step by Step Solution
- Step 1: Write the proportion equation
251,665,387.41 : 347,340,496.58 = 145,884,971.68 : x - Step 2: Convert to fraction form
251,665,387.41/347,340,496.58 = 145,884,971.68/x - Step 3: Cross multiply
251,665,387.41x = 347,340,496.58 × 145,884,971.68 - Step 4: Simplify right side
251,665,387.41x = 50,671,758,505,839,736 - Step 5: Solve for x
x = 50,671,758,505,839,736/251,665,387.41 - Step 6: Final answer
x = 201,345,759.25
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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.