Finding the Fourth Proportional to 34,203,112.80, 47,201,059.36 and 19,518,486.72
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Solution
The fourth proportional to 34,203,112.80, 47,201,059.36 and 19,518,486.72 is: 26,935,947.49
Step by Step Solution
- Step 1: Write the proportion equation
34,203,112.80 : 47,201,059.36 = 19,518,486.72 : x - Step 2: Convert to fraction form
34,203,112.80/47,201,059.36 = 19,518,486.72/x - Step 3: Cross multiply
34,203,112.80x = 47,201,059.36 × 19,518,486.72 - Step 4: Simplify right side
34,203,112.80x = 921,293,250,288,091.62 - Step 5: Solve for x
x = 921,293,250,288,091.62/34,203,112.80 - Step 6: Final answer
x = 26,935,947.49
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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.