Finding the Fourth Proportional to 21,115,651.36, 31,674,914.88 and 6,739,801.24
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Solution
The fourth proportional to 21,115,651.36, 31,674,914.88 and 6,739,801.24 is: 10,110,160.80
Step by Step Solution
- Step 1: Write the proportion equation
21,115,651.36 : 31,674,914.88 = 6,739,801.24 : x - Step 2: Convert to fraction form
21,115,651.36/31,674,914.88 = 6,739,801.24/x - Step 3: Cross multiply
21,115,651.36x = 31,674,914.88 × 6,739,801.24 - Step 4: Simplify right side
21,115,651.36x = 213,482,630,585,118.44 - Step 5: Solve for x
x = 213,482,630,585,118.44/21,115,651.36 - Step 6: Final answer
x = 10,110,160.80
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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.