Finding the Fourth Proportional to 403,705,122.75, 557,113,293.77 and 218,066,140.26
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Solution
The fourth proportional to 403,705,122.75, 557,113,293.77 and 218,066,140.26 is: 300,931,394.75
Step by Step Solution
- Step 1: Write the proportion equation
403,705,122.75 : 557,113,293.77 = 218,066,140.26 : x - Step 2: Convert to fraction form
403,705,122.75/557,113,293.77 = 218,066,140.26/x - Step 3: Cross multiply
403,705,122.75x = 557,113,293.77 × 218,066,140.26 - Step 4: Simplify right side
403,705,122.75x = 121,487,545,658,869,072 - Step 5: Solve for x
x = 121,487,545,658,869,072/403,705,122.75 - Step 6: Final answer
x = 300,931,394.75
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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.