Finding the Fourth Proportional to 1,072,785,029.20, 1,609,177,543.80 and 528,589,445.20
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Solution
The fourth proportional to 1,072,785,029.20, 1,609,177,543.80 and 528,589,445.20 is: 792,884,167.80
Step by Step Solution
- Step 1: Write the proportion equation
1,072,785,029.20 : 1,609,177,543.80 = 528,589,445.20 : x - Step 2: Convert to fraction form
1,072,785,029.20/1,609,177,543.80 = 528,589,445.20/x - Step 3: Cross multiply
1,072,785,029.20x = 1,609,177,543.80 × 528,589,445.20 - Step 4: Simplify right side
1,072,785,029.20x = 850,594,265,105,540,608 - Step 5: Solve for x
x = 850,594,265,105,540,608/1,072,785,029.20 - Step 6: Final answer
x = 792,884,167.80
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Double scale
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Similar ratio
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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.