Finding the Fourth Proportional to 212,242,241.94, 292,907,644.20 and 128,617,694.52
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Solution
The fourth proportional to 212,242,241.94, 292,907,644.20 and 128,617,694.52 is: 177,500,508.66
Step by Step Solution
- Step 1: Write the proportion equation
212,242,241.94 : 292,907,644.20 = 128,617,694.52 : x - Step 2: Convert to fraction form
212,242,241.94/292,907,644.20 = 128,617,694.52/x - Step 3: Cross multiply
212,242,241.94x = 292,907,644.20 × 128,617,694.52 - Step 4: Simplify right side
212,242,241.94x = 37,673,105,904,288,448 - Step 5: Solve for x
x = 37,673,105,904,288,448/212,242,241.94 - Step 6: Final answer
x = 177,500,508.66
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.