Finding the Fourth Proportional to 19,821,723.68, 29,729,157.36 and 5,248,852.80
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Solution
The fourth proportional to 19,821,723.68, 29,729,157.36 and 5,248,852.80 is: 7,872,371.41
Step by Step Solution
- Step 1: Write the proportion equation
19,821,723.68 : 29,729,157.36 = 5,248,852.80 : x - Step 2: Convert to fraction form
19,821,723.68/29,729,157.36 = 5,248,852.80/x - Step 3: Cross multiply
19,821,723.68x = 29,729,157.36 × 5,248,852.80 - Step 4: Simplify right side
19,821,723.68x = 156,043,970,850,676.59 - Step 5: Solve for x
x = 156,043,970,850,676.59/19,821,723.68 - Step 6: Final answer
x = 7,872,371.41
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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.