Finding the Fourth Proportional to 272,630,463,309.45, 408,945,694,964.18 and 131,415,695,068.95
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Solution
The fourth proportional to 272,630,463,309.45, 408,945,694,964.18 and 131,415,695,068.95 is: 197,123,542,603.43
Step by Step Solution
- Step 1: Write the proportion equation
272,630,463,309.45 : 408,945,694,964.18 = 131,415,695,068.95 : x - Step 2: Convert to fraction form
272,630,463,309.45/408,945,694,964.18 = 131,415,695,068.95/x - Step 3: Cross multiply
272,630,463,309.45x = 408,945,694,964.18 × 131,415,695,068.95 - Step 4: Simplify right side
272,630,463,309.45x = 53,741,882,749,172,521,631,744 - Step 5: Solve for x
x = 53,741,882,749,172,521,631,744/272,630,463,309.45 - Step 6: Final answer
x = 197,123,542,603.43
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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.