Finding the Fourth Proportional to 6,605,135.20, 9,907,702.80 and 6,126,838.30
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Solution
The fourth proportional to 6,605,135.20, 9,907,702.80 and 6,126,838.30 is: 9,190,257.45
Step by Step Solution
- Step 1: Write the proportion equation
6,605,135.20 : 9,907,702.80 = 6,126,838.30 : x - Step 2: Convert to fraction form
6,605,135.20/9,907,702.80 = 6,126,838.30/x - Step 3: Cross multiply
6,605,135.20x = 9,907,702.80 × 6,126,838.30 - Step 4: Simplify right side
6,605,135.20x = 60,702,892,980,057.24 - Step 5: Solve for x
x = 60,702,892,980,057.24/6,605,135.20 - Step 6: Final answer
x = 9,190,257.45
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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.