Finding the Fourth Proportional to 3,648,947.94, 5,036,347.53 and 2,121,935.94
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Solution
The fourth proportional to 3,648,947.94, 5,036,347.53 and 2,121,935.94 is: 2,928,736.45
Step by Step Solution
- Step 1: Write the proportion equation
3,648,947.94 : 5,036,347.53 = 2,121,935.94 : x - Step 2: Convert to fraction form
3,648,947.94/5,036,347.53 = 2,121,935.94/x - Step 3: Cross multiply
3,648,947.94x = 5,036,347.53 × 2,121,935.94 - Step 4: Simplify right side
3,648,947.94x = 10,686,806,830,237.23 - Step 5: Solve for x
x = 10,686,806,830,237.23/3,648,947.94 - Step 6: Final answer
x = 2,928,736.45
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1.5x scale
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.