Finding the Fourth Proportional to 19,389,219.20, 29,083,828.80 and 16,403,235.20
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Solution
The fourth proportional to 19,389,219.20, 29,083,828.80 and 16,403,235.20 is: 24,604,852.80
Step by Step Solution
- Step 1: Write the proportion equation
19,389,219.20 : 29,083,828.80 = 16,403,235.20 : x - Step 2: Convert to fraction form
19,389,219.20/29,083,828.80 = 16,403,235.20/x - Step 3: Cross multiply
19,389,219.20x = 29,083,828.80 × 16,403,235.20 - Step 4: Simplify right side
19,389,219.20x = 477,068,884,322,933.75 - Step 5: Solve for x
x = 477,068,884,322,933.75/19,389,219.20 - Step 6: Final answer
x = 24,604,852.80
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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.