Finding the Fourth Proportional to 7,972,276,247.20, 11,958,414,370.80 and 4,872,912,335.20
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Solution
The fourth proportional to 7,972,276,247.20, 11,958,414,370.80 and 4,872,912,335.20 is: 7,309,368,502.80
Step by Step Solution
- Step 1: Write the proportion equation
7,972,276,247.20 : 11,958,414,370.80 = 4,872,912,335.20 : x - Step 2: Convert to fraction form
7,972,276,247.20/11,958,414,370.80 = 4,872,912,335.20/x - Step 3: Cross multiply
7,972,276,247.20x = 11,958,414,370.80 × 4,872,912,335.20 - Step 4: Simplify right side
7,972,276,247.20x = 58,272,304,896,904,257,536 - Step 5: Solve for x
x = 58,272,304,896,904,257,536/7,972,276,247.20 - Step 6: Final answer
x = 7,309,368,502.80
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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.