Finding the Fourth Proportional to 163,417,014.08, 225,515,424.36 and 90,079,380.80
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Solution
The fourth proportional to 163,417,014.08, 225,515,424.36 and 90,079,380.80 is: 124,309,515.15
Step by Step Solution
- Step 1: Write the proportion equation
163,417,014.08 : 225,515,424.36 = 90,079,380.80 : x - Step 2: Convert to fraction form
163,417,014.08/225,515,424.36 = 90,079,380.80/x - Step 3: Cross multiply
163,417,014.08x = 225,515,424.36 × 90,079,380.80 - Step 4: Simplify right side
163,417,014.08x = 20,314,289,787,198,036 - Step 5: Solve for x
x = 20,314,289,787,198,036/163,417,014.08 - Step 6: Final answer
x = 124,309,515.15
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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.