Finding the Fourth Proportional to 1,775,190,406.20, 2,662,785,609.30 and 740,793,643.80
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Solution
The fourth proportional to 1,775,190,406.20, 2,662,785,609.30 and 740,793,643.80 is: 1,111,190,465.70
Step by Step Solution
- Step 1: Write the proportion equation
1,775,190,406.20 : 2,662,785,609.30 = 740,793,643.80 : x - Step 2: Convert to fraction form
1,775,190,406.20/2,662,785,609.30 = 740,793,643.80/x - Step 3: Cross multiply
1,775,190,406.20x = 2,662,785,609.30 × 740,793,643.80 - Step 4: Simplify right side
1,775,190,406.20x = 1,972,574,654,171,550,208 - Step 5: Solve for x
x = 1,972,574,654,171,550,208/1,775,190,406.20 - Step 6: Final answer
x = 1,111,190,465.70
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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.