Finding the Fourth Proportional to 925,757,349.20, 1,388,081,749.56 and 312,327,993.68
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Solution
The fourth proportional to 925,757,349.20, 1,388,081,749.56 and 312,327,993.68 is: 468,304,991.88
Step by Step Solution
- Step 1: Write the proportion equation
925,757,349.20 : 1,388,081,749.56 = 312,327,993.68 : x - Step 2: Convert to fraction form
925,757,349.20/1,388,081,749.56 = 312,327,993.68/x - Step 3: Cross multiply
925,757,349.20x = 1,388,081,749.56 × 312,327,993.68 - Step 4: Simplify right side
925,757,349.20x = 433,536,787,903,899,008 - Step 5: Solve for x
x = 433,536,787,903,899,008/925,757,349.20 - Step 6: Final answer
x = 468,304,991.88
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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.