Finding the Fourth Proportional to 128,317,394.16, 192,399,226.09 and 40,841,126.03
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Solution
The fourth proportional to 128,317,394.16, 192,399,226.09 and 40,841,126.03 is: 61,237,224.25
Step by Step Solution
- Step 1: Write the proportion equation
128,317,394.16 : 192,399,226.09 = 40,841,126.03 : x - Step 2: Convert to fraction form
128,317,394.16/192,399,226.09 = 40,841,126.03/x - Step 3: Cross multiply
128,317,394.16x = 192,399,226.09 × 40,841,126.03 - Step 4: Simplify right side
128,317,394.16x = 7,857,801,041,195,049 - Step 5: Solve for x
x = 7,857,801,041,195,049/128,317,394.16 - Step 6: Final answer
x = 61,237,224.25
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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.