Finding the Fourth Proportional to 3,643,315.07, 5,028,201.23 and 3,030,386.45
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Solution
The fourth proportional to 3,643,315.07, 5,028,201.23 and 3,030,386.45 is: 4,182,287.99
Step by Step Solution
- Step 1: Write the proportion equation
3,643,315.07 : 5,028,201.23 = 3,030,386.45 : x - Step 2: Convert to fraction form
3,643,315.07/5,028,201.23 = 3,030,386.45/x - Step 3: Cross multiply
3,643,315.07x = 5,028,201.23 × 3,030,386.45 - Step 4: Simplify right side
3,643,315.07x = 15,237,392,834,972.39 - Step 5: Solve for x
x = 15,237,392,834,972.39/3,643,315.07 - Step 6: Final answer
x = 4,182,287.99
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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.