Finding the Fourth Proportional to 7,380,967.80, 11,071,451.70 and 5,887,975.80
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Solution
The fourth proportional to 7,380,967.80, 11,071,451.70 and 5,887,975.80 is: 8,831,963.70
Step by Step Solution
- Step 1: Write the proportion equation
7,380,967.80 : 11,071,451.70 = 5,887,975.80 : x - Step 2: Convert to fraction form
7,380,967.80/11,071,451.70 = 5,887,975.80/x - Step 3: Cross multiply
7,380,967.80x = 11,071,451.70 × 5,887,975.80 - Step 4: Simplify right side
7,380,967.80x = 65,188,439,680,468.85 - Step 5: Solve for x
x = 65,188,439,680,468.85/7,380,967.80 - Step 6: Final answer
x = 8,831,963.70
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1.5x scale
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.