Finding the Fourth Proportional to 407,717,972.74, 611,465,342.09 and 112,542,529.31
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Solution
The fourth proportional to 407,717,972.74, 611,465,342.09 and 112,542,529.31 is: 168,782,984.28
Step by Step Solution
- Step 1: Write the proportion equation
407,717,972.74 : 611,465,342.09 = 112,542,529.31 : x - Step 2: Convert to fraction form
407,717,972.74/611,465,342.09 = 112,542,529.31/x - Step 3: Cross multiply
407,717,972.74x = 611,465,342.09 × 112,542,529.31 - Step 4: Simplify right side
407,717,972.74x = 68,815,856,183,521,824 - Step 5: Solve for x
x = 68,815,856,183,521,824/407,717,972.74 - Step 6: Final answer
x = 168,782,984.28
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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.