Finding the Fourth Proportional to 1,100,220,720.48, 1,520,482,124.88 and 901,669,114.08
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Solution
The fourth proportional to 1,100,220,720.48, 1,520,482,124.88 and 901,669,114.08 is: 1,246,087,939.44
Step by Step Solution
- Step 1: Write the proportion equation
1,100,220,720.48 : 1,520,482,124.88 = 901,669,114.08 : x - Step 2: Convert to fraction form
1,100,220,720.48/1,520,482,124.88 = 901,669,114.08/x - Step 3: Cross multiply
1,100,220,720.48x = 1,520,482,124.88 × 901,669,114.08 - Step 4: Simplify right side
1,100,220,720.48x = 1,370,971,770,515,025,664 - Step 5: Solve for x
x = 1,370,971,770,515,025,664/1,100,220,720.48 - Step 6: Final answer
x = 1,246,087,939.44
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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.