Finding the Fourth Proportional to 1,775,190,512.70, 2,662,785,769.05 and 740,793,750.30
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Solution
The fourth proportional to 1,775,190,512.70, 2,662,785,769.05 and 740,793,750.30 is: 1,111,190,625.45
Step by Step Solution
- Step 1: Write the proportion equation
1,775,190,512.70 : 2,662,785,769.05 = 740,793,750.30 : x - Step 2: Convert to fraction form
1,775,190,512.70/2,662,785,769.05 = 740,793,750.30/x - Step 3: Cross multiply
1,775,190,512.70x = 2,662,785,769.05 × 740,793,750.30 - Step 4: Simplify right side
1,775,190,512.70x = 1,972,575,056,100,019,200 - Step 5: Solve for x
x = 1,972,575,056,100,019,200/1,775,190,512.70 - Step 6: Final answer
x = 1,111,190,625.45
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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.