Finding the Fourth Proportional to 122,912,108.10, 184,368,162.15 and 84,170,059.20
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Solution
The fourth proportional to 122,912,108.10, 184,368,162.15 and 84,170,059.20 is: 126,255,088.80
Step by Step Solution
- Step 1: Write the proportion equation
122,912,108.10 : 184,368,162.15 = 84,170,059.20 : x - Step 2: Convert to fraction form
122,912,108.10/184,368,162.15 = 84,170,059.20/x - Step 3: Cross multiply
122,912,108.10x = 184,368,162.15 × 84,170,059.20 - Step 4: Simplify right side
122,912,108.10x = 15,518,279,122,760,700 - Step 5: Solve for x
x = 15,518,279,122,760,700/122,912,108.10 - Step 6: Final answer
x = 126,255,088.80
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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.