Finding the Fourth Proportional to 3,747,742.47, 5,171,886.35 and 2,028,862.99
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Solution
The fourth proportional to 3,747,742.47, 5,171,886.35 and 2,028,862.99 is: 2,799,831.87
Step by Step Solution
- Step 1: Write the proportion equation
3,747,742.47 : 5,171,886.35 = 2,028,862.99 : x - Step 2: Convert to fraction form
3,747,742.47/5,171,886.35 = 2,028,862.99/x - Step 3: Cross multiply
3,747,742.47x = 5,171,886.35 × 2,028,862.99 - Step 4: Simplify right side
3,747,742.47x = 10,493,048,804,001.19 - Step 5: Solve for x
x = 10,493,048,804,001.19/3,747,742.47 - Step 6: Final answer
x = 2,799,831.87
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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.