Finding the Fourth Proportional to 153,504,440.15, 230,231,438.99 and 55,115,779.19
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Solution
The fourth proportional to 153,504,440.15, 230,231,438.99 and 55,115,779.19 is: 82,664,613.10
Step by Step Solution
- Step 1: Write the proportion equation
153,504,440.15 : 230,231,438.99 = 55,115,779.19 : x - Step 2: Convert to fraction form
153,504,440.15/230,231,438.99 = 55,115,779.19/x - Step 3: Cross multiply
153,504,440.15x = 230,231,438.99 × 55,115,779.19 - Step 4: Simplify right side
153,504,440.15x = 12,689,385,153,693,218 - Step 5: Solve for x
x = 12,689,385,153,693,218/153,504,440.15 - Step 6: Final answer
x = 82,664,613.10
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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.