Finding the Fourth Proportional to 13,525,070.20, 20,285,643.17 and 4,427,528.18
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Solution
The fourth proportional to 13,525,070.20, 20,285,643.17 and 4,427,528.18 is: 6,640,649.95
Step by Step Solution
- Step 1: Write the proportion equation
13,525,070.20 : 20,285,643.17 = 4,427,528.18 : x - Step 2: Convert to fraction form
13,525,070.20/20,285,643.17 = 4,427,528.18/x - Step 3: Cross multiply
13,525,070.20x = 20,285,643.17 × 4,427,528.18 - Step 4: Simplify right side
13,525,070.20x = 89,815,256,694,240.12 - Step 5: Solve for x
x = 89,815,256,694,240.12/13,525,070.20 - Step 6: Final answer
x = 6,640,649.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.