Finding the Fourth Proportional to 729,079,394.58, 1,006,125,898.05 and 394,551,675.54
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Solution
The fourth proportional to 729,079,394.58, 1,006,125,898.05 and 394,551,675.54 is: 544,479,328.08
Step by Step Solution
- Step 1: Write the proportion equation
729,079,394.58 : 1,006,125,898.05 = 394,551,675.54 : x - Step 2: Convert to fraction form
729,079,394.58/1,006,125,898.05 = 394,551,675.54/x - Step 3: Cross multiply
729,079,394.58x = 1,006,125,898.05 × 394,551,675.54 - Step 4: Simplify right side
729,079,394.58x = 396,968,658,879,814,720 - Step 5: Solve for x
x = 396,968,658,879,814,720/729,079,394.58 - Step 6: Final answer
x = 544,479,328.08
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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.