Finding the Fourth Proportional to 812,632,410.60, 1,121,438,466.19 and 441,354,441.97
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Solution
The fourth proportional to 812,632,410.60, 1,121,438,466.19 and 441,354,441.97 is: 609,072,247.17
Step by Step Solution
- Step 1: Write the proportion equation
812,632,410.60 : 1,121,438,466.19 = 441,354,441.97 : x - Step 2: Convert to fraction form
812,632,410.60/1,121,438,466.19 = 441,354,441.97/x - Step 3: Cross multiply
812,632,410.60x = 1,121,438,466.19 × 441,354,441.97 - Step 4: Simplify right side
812,632,410.60x = 494,951,848,448,428,800 - Step 5: Solve for x
x = 494,951,848,448,428,800/812,632,410.60 - Step 6: Final answer
x = 609,072,247.17
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.