Finding the Fourth Proportional to 167,995,318.20, 251,992,977.30 and 143,336,455.80
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Solution
The fourth proportional to 167,995,318.20, 251,992,977.30 and 143,336,455.80 is: 215,004,683.70
Step by Step Solution
- Step 1: Write the proportion equation
167,995,318.20 : 251,992,977.30 = 143,336,455.80 : x - Step 2: Convert to fraction form
167,995,318.20/251,992,977.30 = 143,336,455.80/x - Step 3: Cross multiply
167,995,318.20x = 251,992,977.30 × 143,336,455.80 - Step 4: Simplify right side
167,995,318.20x = 36,119,780,252,671,856 - Step 5: Solve for x
x = 36,119,780,252,671,856/167,995,318.20 - Step 6: Final answer
x = 215,004,683.70
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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.