Finding the Fourth Proportional to 13,657,074.18, 20,486,990.16 and 4,434,661.05
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Solution
The fourth proportional to 13,657,074.18, 20,486,990.16 and 4,434,661.05 is: 6,652,439.32
Step by Step Solution
- Step 1: Write the proportion equation
13,657,074.18 : 20,486,990.16 = 4,434,661.05 : x - Step 2: Convert to fraction form
13,657,074.18/20,486,990.16 = 4,434,661.05/x - Step 3: Cross multiply
13,657,074.18x = 20,486,990.16 × 4,434,661.05 - Step 4: Simplify right side
13,657,074.18x = 90,852,857,294,285.27 - Step 5: Solve for x
x = 90,852,857,294,285.27/13,657,074.18 - Step 6: Final answer
x = 6,652,439.32
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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.