Finding the Fourth Proportional to 140,122,117.80, 210,183,176.70 and 140,122,117.80
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Solution
The fourth proportional to 140,122,117.80, 210,183,176.70 and 140,122,117.80 is: 210,183,176.70
Step by Step Solution
- Step 1: Write the proportion equation
140,122,117.80 : 210,183,176.70 = 140,122,117.80 : x - Step 2: Convert to fraction form
140,122,117.80/210,183,176.70 = 140,122,117.80/x - Step 3: Cross multiply
140,122,117.80x = 210,183,176.70 × 140,122,117.80 - Step 4: Simplify right side
140,122,117.80x = 29,451,311,845,135,616 - Step 5: Solve for x
x = 29,451,311,845,135,616/140,122,117.80 - Step 6: Final answer
x = 210,183,176.70
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1.5x scale
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.