Finding the Fourth Proportional to 126,084,285.60, 189,126,428.40 and 44,295,515.70
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Solution
The fourth proportional to 126,084,285.60, 189,126,428.40 and 44,295,515.70 is: 66,443,273.55
Step by Step Solution
- Step 1: Write the proportion equation
126,084,285.60 : 189,126,428.40 = 44,295,515.70 : x - Step 2: Convert to fraction form
126,084,285.60/189,126,428.40 = 44,295,515.70/x - Step 3: Cross multiply
126,084,285.60x = 189,126,428.40 × 44,295,515.70 - Step 4: Simplify right side
126,084,285.60x = 8,377,452,678,477,127 - Step 5: Solve for x
x = 8,377,452,678,477,127/126,084,285.60 - Step 6: Final answer
x = 66,443,273.55
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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.