Finding the Fourth Proportional to 153,112,879.80, 229,669,319.70 and 153,112,879.80
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Solution
The fourth proportional to 153,112,879.80, 229,669,319.70 and 153,112,879.80 is: 229,669,319.70
Step by Step Solution
- Step 1: Write the proportion equation
153,112,879.80 : 229,669,319.70 = 153,112,879.80 : x - Step 2: Convert to fraction form
153,112,879.80/229,669,319.70 = 153,112,879.80/x - Step 3: Cross multiply
153,112,879.80x = 229,669,319.70 × 153,112,879.80 - Step 4: Simplify right side
153,112,879.80x = 35,165,330,940,973,872 - Step 5: Solve for x
x = 35,165,330,940,973,872/153,112,879.80 - Step 6: Final answer
x = 229,669,319.70
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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.