Finding the Fourth Proportional to 5,605,943.99, 7,728,140.54 and 3,993,512.63
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Solution
The fourth proportional to 5,605,943.99, 7,728,140.54 and 3,993,512.63 is: 5,505,304.17
Step by Step Solution
- Step 1: Write the proportion equation
5,605,943.99 : 7,728,140.54 = 3,993,512.63 : x - Step 2: Convert to fraction form
5,605,943.99/7,728,140.54 = 3,993,512.63/x - Step 3: Cross multiply
5,605,943.99x = 7,728,140.54 × 3,993,512.63 - Step 4: Simplify right side
5,605,943.99x = 30,862,426,824,248.10 - Step 5: Solve for x
x = 30,862,426,824,248.10/5,605,943.99 - Step 6: Final answer
x = 5,505,304.17
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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.