Finding the Fourth Proportional to 122,912,108.60, 184,368,162.90 and 84,170,059.70
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Solution
The fourth proportional to 122,912,108.60, 184,368,162.90 and 84,170,059.70 is: 126,255,089.55
Step by Step Solution
- Step 1: Write the proportion equation
122,912,108.60 : 184,368,162.90 = 84,170,059.70 : x - Step 2: Convert to fraction form
122,912,108.60/184,368,162.90 = 84,170,059.70/x - Step 3: Cross multiply
122,912,108.60x = 184,368,162.90 × 84,170,059.70 - Step 4: Simplify right side
122,912,108.60x = 15,518,279,278,072,326 - Step 5: Solve for x
x = 15,518,279,278,072,326/122,912,108.60 - Step 6: Final answer
x = 126,255,089.55
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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.