Finding the Fourth Proportional to 220,765,981.27, 304,643,327.09 and 121,641,181.53
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Solution
The fourth proportional to 220,765,981.27, 304,643,327.09 and 121,641,181.53 is: 167,857,266.96
Step by Step Solution
- Step 1: Write the proportion equation
220,765,981.27 : 304,643,327.09 = 121,641,181.53 : x - Step 2: Convert to fraction form
220,765,981.27/304,643,327.09 = 121,641,181.53/x - Step 3: Cross multiply
220,765,981.27x = 304,643,327.09 × 121,641,181.53 - Step 4: Simplify right side
220,765,981.27x = 37,057,174,252,759,928 - Step 5: Solve for x
x = 37,057,174,252,759,928/220,765,981.27 - Step 6: Final answer
x = 167,857,266.96
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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.