Finding the Fourth Proportional to 18,539,704.80, 27,828,219.60 and 8,962,783.20
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Solution
The fourth proportional to 18,539,704.80, 27,828,219.60 and 8,962,783.20 is: 13,453,196.90
Step by Step Solution
- Step 1: Write the proportion equation
18,539,704.80 : 27,828,219.60 = 8,962,783.20 : x - Step 2: Convert to fraction form
18,539,704.80/27,828,219.60 = 8,962,783.20/x - Step 3: Cross multiply
18,539,704.80x = 27,828,219.60 × 8,962,783.20 - Step 4: Simplify right side
18,539,704.80x = 249,418,299,116,790.72 - Step 5: Solve for x
x = 249,418,299,116,790.72/18,539,704.80 - Step 6: Final answer
x = 13,453,196.90
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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.