Finding the Fourth Proportional to 528,305,183.82, 729,128,414.07 and 319,462,821
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Solution
The fourth proportional to 528,305,183.82, 729,128,414.07 and 319,462,821 is: 440,899,364.92
Step by Step Solution
- Step 1: Write the proportion equation
528,305,183.82 : 729,128,414.07 = 319,462,821 : x - Step 2: Convert to fraction form
528,305,183.82/729,128,414.07 = 319,462,821/x - Step 3: Cross multiply
528,305,183.82x = 729,128,414.07 × 319,462,821 - Step 4: Simplify right side
528,305,183.82x = 232,929,420,030,058,304 - Step 5: Solve for x
x = 232,929,420,030,058,304/528,305,183.82 - Step 6: Final answer
x = 440,899,364.92
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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.