Finding the Fourth Proportional to 322,897,396.67, 445,736,145.34 and 217,112,128.05
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Solution
The fourth proportional to 322,897,396.67, 445,736,145.34 and 217,112,128.05 is: 299,707,349.96
Step by Step Solution
- Step 1: Write the proportion equation
322,897,396.67 : 445,736,145.34 = 217,112,128.05 : x - Step 2: Convert to fraction form
322,897,396.67/445,736,145.34 = 217,112,128.05/x - Step 3: Cross multiply
322,897,396.67x = 445,736,145.34 × 217,112,128.05 - Step 4: Simplify right side
322,897,396.67x = 96,774,723,063,571,488 - Step 5: Solve for x
x = 96,774,723,063,571,488/322,897,396.67 - Step 6: Final answer
x = 299,707,349.96
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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.