Finding the Fourth Proportional to 13,078,026.64, 18,047,659.84 and 8,114,621.95
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Solution
The fourth proportional to 13,078,026.64, 18,047,659.84 and 8,114,621.95 is: 11,198,167.79
Step by Step Solution
- Step 1: Write the proportion equation
13,078,026.64 : 18,047,659.84 = 8,114,621.95 : x - Step 2: Convert to fraction form
13,078,026.64/18,047,659.84 = 8,114,621.95/x - Step 3: Cross multiply
13,078,026.64x = 18,047,659.84 × 8,114,621.95 - Step 4: Simplify right side
13,078,026.64x = 146,449,936,683,797.50 - Step 5: Solve for x
x = 146,449,936,683,797.50/13,078,026.64 - Step 6: Final answer
x = 11,198,167.79
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.