Finding the Fourth Proportional to 18,564,216.96, 25,618,220.76 and 10,303,796.44
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Solution
The fourth proportional to 18,564,216.96, 25,618,220.76 and 10,303,796.44 is: 14,219,017.83
Step by Step Solution
- Step 1: Write the proportion equation
18,564,216.96 : 25,618,220.76 = 10,303,796.44 : x - Step 2: Convert to fraction form
18,564,216.96/25,618,220.76 = 10,303,796.44/x - Step 3: Cross multiply
18,564,216.96x = 25,618,220.76 × 10,303,796.44 - Step 4: Simplify right side
18,564,216.96x = 263,964,931,866,022.09 - Step 5: Solve for x
x = 263,964,931,866,022.09/18,564,216.96 - Step 6: Final answer
x = 14,219,017.83
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.