Finding the Fourth Proportional to 2,516,912,939.82, 3,775,520,741.58 and 770,130,810.03
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Solution
The fourth proportional to 2,516,912,939.82, 3,775,520,741.58 and 770,130,810.03 is: 1,155,242,519.91
Step by Step Solution
- Step 1: Write the proportion equation
2,516,912,939.82 : 3,775,520,741.58 = 770,130,810.03 : x - Step 2: Convert to fraction form
2,516,912,939.82/3,775,520,741.58 = 770,130,810.03/x - Step 3: Cross multiply
2,516,912,939.82x = 3,775,520,741.58 × 770,130,810.03 - Step 4: Simplify right side
2,516,912,939.82x = 2,907,644,846,998,071,296 - Step 5: Solve for x
x = 2,907,644,846,998,071,296/2,516,912,939.82 - Step 6: Final answer
x = 1,155,242,519.91
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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.