Finding the Fourth Proportional to 19,453,305.72, 26,848,827.72 and 13,170,984.18
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Solution
The fourth proportional to 19,453,305.72, 26,848,827.72 and 13,170,984.18 is: 18,178,169.32
Step by Step Solution
- Step 1: Write the proportion equation
19,453,305.72 : 26,848,827.72 = 13,170,984.18 : x - Step 2: Convert to fraction form
19,453,305.72/26,848,827.72 = 13,170,984.18/x - Step 3: Cross multiply
19,453,305.72x = 26,848,827.72 × 13,170,984.18 - Step 4: Simplify right side
19,453,305.72x = 353,625,485,151,665.44 - Step 5: Solve for x
x = 353,625,485,151,665.44/19,453,305.72 - Step 6: Final answer
x = 18,178,169.32
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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.