Finding the Fourth Proportional to 38,625,729.99, 53,350,663.83 and 28,879,397.31
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Solution
The fourth proportional to 38,625,729.99, 53,350,663.83 and 28,879,397.31 is: 39,888,825.87
Step by Step Solution
- Step 1: Write the proportion equation
38,625,729.99 : 53,350,663.83 = 28,879,397.31 : x - Step 2: Convert to fraction form
38,625,729.99/53,350,663.83 = 28,879,397.31/x - Step 3: Cross multiply
38,625,729.99x = 53,350,663.83 × 28,879,397.31 - Step 4: Simplify right side
38,625,729.99x = 1,540,735,017,498,816.25 - Step 5: Solve for x
x = 1,540,735,017,498,816.25/38,625,729.99 - Step 6: Final answer
x = 39,888,825.87
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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.