Finding the Fourth Proportional to 7,972,276,044.70, 11,958,414,067.05 and 4,872,912,132.70
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Solution
The fourth proportional to 7,972,276,044.70, 11,958,414,067.05 and 4,872,912,132.70 is: 7,309,368,199.05
Step by Step Solution
- Step 1: Write the proportion equation
7,972,276,044.70 : 11,958,414,067.05 = 4,872,912,132.70 : x - Step 2: Convert to fraction form
7,972,276,044.70/11,958,414,067.05 = 4,872,912,132.70/x - Step 3: Cross multiply
7,972,276,044.70x = 11,958,414,067.05 × 4,872,912,132.70 - Step 4: Simplify right side
7,972,276,044.70x = 58,272,300,995,178,291,200 - Step 5: Solve for x
x = 58,272,300,995,178,291,200/7,972,276,044.70 - Step 6: Final answer
x = 7,309,368,199.05
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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.