Finding the Fourth Proportional to 19,761,469.16, 27,273,691.44 and 11,387,209.64
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Solution
The fourth proportional to 19,761,469.16, 27,273,691.44 and 11,387,209.64 is: 15,715,999.63
Step by Step Solution
- Step 1: Write the proportion equation
19,761,469.16 : 27,273,691.44 = 11,387,209.64 : x - Step 2: Convert to fraction form
19,761,469.16/27,273,691.44 = 11,387,209.64/x - Step 3: Cross multiply
19,761,469.16x = 27,273,691.44 × 11,387,209.64 - Step 4: Simplify right side
19,761,469.16x = 310,571,242,007,159.31 - Step 5: Solve for x
x = 310,571,242,007,159.31/19,761,469.16 - Step 6: Final answer
x = 15,715,999.63
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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.