Finding the Fourth Proportional to 7,138,092,198.44, 9,850,803,471.06 and 3,923,116,144.70
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Solution
The fourth proportional to 7,138,092,198.44, 9,850,803,471.06 and 3,923,116,144.70 is: 5,414,030,116.34
Step by Step Solution
- Step 1: Write the proportion equation
7,138,092,198.44 : 9,850,803,471.06 = 3,923,116,144.70 : x - Step 2: Convert to fraction form
7,138,092,198.44/9,850,803,471.06 = 3,923,116,144.70/x - Step 3: Cross multiply
7,138,092,198.44x = 9,850,803,471.06 × 3,923,116,144.70 - Step 4: Simplify right side
7,138,092,198.44x = 38,645,846,135,562,665,984 - Step 5: Solve for x
x = 38,645,846,135,562,665,984/7,138,092,198.44 - Step 6: Final answer
x = 5,414,030,116.34
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Double scale
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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.