Finding the Fourth Proportional to 124,420,469.20, 186,630,703.80 and 119,381,621.20
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Solution
The fourth proportional to 124,420,469.20, 186,630,703.80 and 119,381,621.20 is: 179,072,431.80
Step by Step Solution
- Step 1: Write the proportion equation
124,420,469.20 : 186,630,703.80 = 119,381,621.20 : x - Step 2: Convert to fraction form
124,420,469.20/186,630,703.80 = 119,381,621.20/x - Step 3: Cross multiply
124,420,469.20x = 186,630,703.80 × 119,381,621.20 - Step 4: Simplify right side
124,420,469.20x = 22,280,275,985,341,004 - Step 5: Solve for x
x = 22,280,275,985,341,004/124,420,469.20 - Step 6: Final answer
x = 179,072,431.80
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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.