Finding the Fourth Proportional to 104,170,319.36, 143,741,827.68 and 57,115,009.76
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Solution
The fourth proportional to 104,170,319.36, 143,741,827.68 and 57,115,009.76 is: 78,811,468.96
Step by Step Solution
- Step 1: Write the proportion equation
104,170,319.36 : 143,741,827.68 = 57,115,009.76 : x - Step 2: Convert to fraction form
104,170,319.36/143,741,827.68 = 57,115,009.76/x - Step 3: Cross multiply
104,170,319.36x = 143,741,827.68 × 57,115,009.76 - Step 4: Simplify right side
104,170,319.36x = 8,209,815,890,863,438 - Step 5: Solve for x
x = 8,209,815,890,863,438/104,170,319.36 - Step 6: Final answer
x = 78,811,468.96
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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.