Finding the Fourth Proportional to 729,014,642.37, 1,006,042,873.05 and 394,487,167.48
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Solution
The fourth proportional to 729,014,642.37, 1,006,042,873.05 and 394,487,167.48 is: 544,393,734.07
Step by Step Solution
- Step 1: Write the proportion equation
729,014,642.37 : 1,006,042,873.05 = 394,487,167.48 : x - Step 2: Convert to fraction form
729,014,642.37/1,006,042,873.05 = 394,487,167.48/x - Step 3: Cross multiply
729,014,642.37x = 1,006,042,873.05 × 394,487,167.48 - Step 4: Simplify right side
729,014,642.37x = 396,871,003,350,420,608 - Step 5: Solve for x
x = 396,871,003,350,420,608/729,014,642.37 - Step 6: Final answer
x = 544,393,734.07
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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.