Finding the Fourth Proportional to 12,069,603.30, 18,080,785.35 and 7,263,014.70
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Solution
The fourth proportional to 12,069,603.30, 18,080,785.35 and 7,263,014.70 is: 10,880,308.70
Step by Step Solution
- Step 1: Write the proportion equation
12,069,603.30 : 18,080,785.35 = 7,263,014.70 : x - Step 2: Convert to fraction form
12,069,603.30/18,080,785.35 = 7,263,014.70/x - Step 3: Cross multiply
12,069,603.30x = 18,080,785.35 × 7,263,014.70 - Step 4: Simplify right side
12,069,603.30x = 131,321,009,784,594.66 - Step 5: Solve for x
x = 131,321,009,784,594.66/12,069,603.30 - Step 6: Final answer
x = 10,880,308.70
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1.5x scale
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.