Finding the Fourth Proportional to 3,139,098.51, 4,332,429.28 and 1,916,112.99
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Solution
The fourth proportional to 3,139,098.51, 4,332,429.28 and 1,916,112.99 is: 2,644,524.85
Step by Step Solution
- Step 1: Write the proportion equation
3,139,098.51 : 4,332,429.28 = 1,916,112.99 : x - Step 2: Convert to fraction form
3,139,098.51/4,332,429.28 = 1,916,112.99/x - Step 3: Cross multiply
3,139,098.51x = 4,332,429.28 × 1,916,112.99 - Step 4: Simplify right side
3,139,098.51x = 8,301,424,021,664.35 - Step 5: Solve for x
x = 8,301,424,021,664.35/3,139,098.51 - Step 6: Final answer
x = 2,644,524.85
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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.