Finding the Fourth Proportional to 403,546,917.40, 605,320,376.10 and 305,974,349.80
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Solution
The fourth proportional to 403,546,917.40, 605,320,376.10 and 305,974,349.80 is: 458,961,524.70
Step by Step Solution
- Step 1: Write the proportion equation
403,546,917.40 : 605,320,376.10 = 305,974,349.80 : x - Step 2: Convert to fraction form
403,546,917.40/605,320,376.10 = 305,974,349.80/x - Step 3: Cross multiply
403,546,917.40x = 605,320,376.10 × 305,974,349.80 - Step 4: Simplify right side
403,546,917.40x = 185,212,508,497,888,960 - Step 5: Solve for x
x = 185,212,508,497,888,960/403,546,917.40 - Step 6: Final answer
x = 458,961,524.70
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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.