Finding the Fourth Proportional to 7,058,077.20, 10,587,115.80 and 5,461,785.90
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Solution
The fourth proportional to 7,058,077.20, 10,587,115.80 and 5,461,785.90 is: 8,192,678.85
Step by Step Solution
- Step 1: Write the proportion equation
7,058,077.20 : 10,587,115.80 = 5,461,785.90 : x - Step 2: Convert to fraction form
7,058,077.20/10,587,115.80 = 5,461,785.90/x - Step 3: Cross multiply
7,058,077.20x = 10,587,115.80 × 5,461,785.90 - Step 4: Simplify right side
7,058,077.20x = 57,824,559,798,107.23 - Step 5: Solve for x
x = 57,824,559,798,107.23/7,058,077.20 - Step 6: Final answer
x = 8,192,678.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.