Finding the Fourth Proportional to 19,761,183.36, 29,675,697.84 and 12,129,642
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Solution
The fourth proportional to 19,761,183.36, 29,675,697.84 and 12,129,642 is: 18,215,285.21
Step by Step Solution
- Step 1: Write the proportion equation
19,761,183.36 : 29,675,697.84 = 12,129,642 : x - Step 2: Convert to fraction form
19,761,183.36/29,675,697.84 = 12,129,642/x - Step 3: Cross multiply
19,761,183.36x = 29,675,697.84 × 12,129,642 - Step 4: Simplify right side
19,761,183.36x = 359,955,590,899,373.25 - Step 5: Solve for x
x = 359,955,590,899,373.25/19,761,183.36 - Step 6: Final answer
x = 18,215,285.21
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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.