Finding the Fourth Proportional to 7,404,988.98, 10,218,749.49 and 4,185,724.98
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Solution
The fourth proportional to 7,404,988.98, 10,218,749.49 and 4,185,724.98 is: 5,776,223.99
Step by Step Solution
- Step 1: Write the proportion equation
7,404,988.98 : 10,218,749.49 = 4,185,724.98 : x - Step 2: Convert to fraction form
7,404,988.98/10,218,749.49 = 4,185,724.98/x - Step 3: Cross multiply
7,404,988.98x = 10,218,749.49 × 4,185,724.98 - Step 4: Simplify right side
7,404,988.98x = 42,772,875,004,655.26 - Step 5: Solve for x
x = 42,772,875,004,655.26/7,404,988.98 - Step 6: Final answer
x = 5,776,223.99
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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.