Finding the Fourth Proportional to 6,989,679.16, 10,485,124.60 and 2,133,079.09
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Solution
The fourth proportional to 6,989,679.16, 10,485,124.60 and 2,133,079.09 is: 3,199,803.53
Step by Step Solution
- Step 1: Write the proportion equation
6,989,679.16 : 10,485,124.60 = 2,133,079.09 : x - Step 2: Convert to fraction form
6,989,679.16/10,485,124.60 = 2,133,079.09/x - Step 3: Cross multiply
6,989,679.16x = 10,485,124.60 × 2,133,079.09 - Step 4: Simplify right side
6,989,679.16x = 22,365,600,040,304.61 - Step 5: Solve for x
x = 22,365,600,040,304.61/6,989,679.16 - Step 6: Final answer
x = 3,199,803.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.